The life span of a battery is the amount of time the battery will last. The distribution of life span for a certain type of battery is approximately normal with mean 2. 5 hours and standard deviation 0. 25 hour. Suppose one battery will be selected at random. Which of the following is closest to the probability that the selected battery will have a life span of at most 2. 1 hours?.

Answers

Answer 1

The probability that the selected battery will have a life span of at most 2.1 hours is 5.48%.

z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x\ is\ raw\ score, \mu\ is\ mean,\sigma\ is\ standard \ deviation[/tex]

Given that μ = 2.5, σ = 0.25.

For x < 2.1:

[tex]z=\frac{2.1-2.5}{0.25}=-1.6[/tex]

From the normal distribution table, P(x ≤ 2.1) = P(z < -1.6) = 0.0548 = 5.48%

The probability that the selected battery will have a life span of at most 2.1 hours is 5.48%.

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Related Questions

In the poem by william shakespeare (published in 1609), the speaker contemplates the value of love. Read the poem carefully. Then, in a well-written essay, analyze how shakespeare uses poetic elements and structural techniques to construct a statement about the complex interaction between self-esteem and love.

Answers

There are different kinds of Poetic elements. The poetic element and structural techniques used are couplet, sonnet, Rhyme Scheme, Iambic pentameter.

Sonnet: A sonnet is simply defined as a fourteen lined poem that is offten written in iambic pentameter. This Shakespearean sonnet is known to have one octave and sestet.

Couplet: not that there is always good and well written lines of verse in a couplet, and they are found in the same meter and often linked by rhyme. In this poem, the sonnet was known to have ended with a couplet. This therefore depicts  the key or central idea of the poem.

Rhyme Scheme: The rhyme scheme in this poem is known to be accompanied  by a full sonnet called ABAB CDCD EBEB FF.

Iambic Pentameter: It is commonly known to be a type of meter that is known to also have five iambs. This poem is known to have Iambic  Example given is quoted below “When in disgrace with Fortune and men’s eyes.”

The literary devices used in this poem are Assonance, imagery, consonance, etc.

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Which ion/molecule in the saliva allows you to taste sugar as sweet weegy.

Answers

Saliva is made up of 99% water, the water molecules helps dissolve food and allows to perceive flavors through the sense of taste.

The food that is introduced into the mouth is dissolved in the saliva, penetrating the taste buds through the pores in the tongue.

The aqueous content where the water molecules represent more than 99% allow the taste receptors to be reached and there is ion exchange for the flavor to be captured.

The individual molecules to perceive the sweet taste are released after moistening the food with saliva, this function is determined by the water.

Therefore, we can conclude that saliva acts on the taste function since the water content can determine the level of dilution of basic flavors such as sweet.

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A rock gym charges $5 to rent equipment and $2 per hour to climb. Logan spent $9. 50. How many hours did he spend climbing?.

Answers

the answer is 2.25 hours, or 2 hours and 25 minutes.
9.50-5=4.50
4.50/2=2.25

7,528 irrational or rational

Answers

Answer:7528 is not a rational number

Explanation: because we know it is not a perfect square.

Events d and e are independent, with p( d ) = 0. 6 and p( d and e ) = 0. 18. Which of the following is true?.

Answers

Answer:

(D) P(D or E) = 0.72

Explanation:

That's the correct answer.

Visit the web site for a well-known company, and find the section that states its mission. What is the company's mission? how does the mission relate to the type of products the company sells? did anything surprise you about the mission? why or why not? tip: if the company's web site doesn't describe its mission, choose a different company.

Answers

Considering this question, the website visited is Walmart. Walmart's corporate mission is “to save people money so they can live better."

Walmart's mission relates to the type of products the company sells because they offer plentiful commodities at everyday low prices to customers.

The mission statement does not surprise me about the company because it matches its operation as they claimed.

Hence, in this case, it is concluded that a mission statement is a great way to understand a company better.

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Which stage direction from part one of trifles most adds to the suspenseful tone?.

Answers

Answer:

uhhh left stage direction

Answer:

Edge2022

D. MRS. PETERS (starts to speak, glances up, where footsteps are heard in the room above. In a low voice.)

Explanation:

What is a good way to make your podcast more interesting brainly.

Answers

A way to make your podcast more interesting is to talk about deep stuff or important topics that is going on in the worlds and that you thing is affecting the world now. Talk about things you're interested in.
Focus on your target audience.
Tell lots of stories.
Help your audience take the next step.
Ask your listeners questions and report their responses.
Stay on topic and don't wander too much.
Invite unique experts onto your show.

Answer:

Add music or sound affects

Explanation:

I-ready

Which of these religious beliefs is most closely related.

Answers

Please first write the full question so that you can get your answer easily.

When driving in heavy rain or on a flooded road your tires.

Answers

When driving on a highway your tires blowout

Which is the best strategy when you find too much information.

Answers

Answer:

Ignore them, just like I have been ignoring your questions. Can't you answer any questions at all without posting them all on Brainly, or are you just too lazy to answer them?

In your response, be sure to address all parts of the question. Use complete sentences; an outline or bulleted list alone is not acceptable. Use the passage to answer all parts of the question that follows. A) describe the broader historical situation in africa at the time that jean barbot wrote his book. B) explain one way in which the passage illustrates the continuing development of the atlantic in the seventeenth century. C) explain one way in which barbot’s background might have influenced his comments about the dutch and the portuguese in the second paragraph.

Answers

The broader historical situation in Africa at the time that Jean Barbot wrote his book was that it showed the colonization of Africa by European countries.

It should be noted that a way that the passage illustrated the continuing development of the Atlantic in the seventeenth century is that it showed that the development was continuous.

Lastly, the way in which Barbot’s background might have influenced his comments about the Dutch and the Portuguese was due to the Protestant link he shared with the Dutch. Therefore, he speaks well of the Dutch and speaks ill of the Portuguese.

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Please select the word from the list that best fits the definition ages 85 and older.

Answers

Answer:

Where is the list?????!!!

Answer: Old-Old

Explanation:

Quadrilateral 1 and quadrilateral 2 are polygons that can be mapped onto each other using similarity transformations. The transformation that maps quadrilateral 1 onto quadrilateral 2 is a followed by a dilation with a scale factor of.

Answers

The transformation that maps quadrilateral 1 onto quadrilateral 2 is a translation followed by a dilation with a scale factor of 1/2

From the question, we have the following highlights

The quadrilaterals are similar (not congruent)Quadrilateral 2 is twice the size of quadrilateral 1

The above highlight (1) means that, quadrilateral 1 can be translated to get 2.

After the translation, the new quadrilateral 1 can then be dilated by 1/2 (this is so because quadrilateral 2 is twice the size of quadrilateral 1.

Hence, the true statement is: the transformation that maps quadrilateral 1 onto quadrilateral 2 is a translation followed by a dilation with a scale factor of 1/2

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Answer:

translation, 2

Explanation:

the n = 8 to n = 2 transition in the bohr hydrogen atom occurs in the ________ region of the electromagnetic spectrum.

Answers

Answer:

ultraviolet

Explanation:

Eight less than four times a number is less than 56.

Answers

Answer:

depending on the number I think I could be wrong not 100%

If the data below are represented by a comparative bar chart , the bar representing which of these will be the tallest?
Passed Failed
Cat. 24. 30
Dog 26. 28

Answers

It would be the cat failed.

Which describes an example of using unsecured credit?.

Answers

Answer:

An example of it is that someone buys new gutters for a home with a credit card. That a simple way to explain it and the answer should be about it xd

Explanation:

When hydrogen reacts with calcium metal what are the oxidation number.

Answers

Answer:

the oxidation number is +2

Use the drop-down menus to label the organelles in the picture to the right. Label a.

Answers

I think you forgot to upload a picture so here’s a diagram of cell parts.

For an animal cell:

Label A

✔ Mitochondria

Label B

✔ Nucleus

Label C

✔ Golgi apparatus

Label D

✔ Ribosomes

-----------------------------------

For a plant cell:

Label A

✔ Vacuole

Label B

✔ Cell wall

Label C

✔ Chloroplast

Label D

✔ Mitochondria

----------------------------------

I hate to ask, but Brainliest please?

Select all that apply. Check the context clues formedley from the passage by sherwood anderson. Fiddlers tuned room above the store broken sounds shining red faces band played loud blare murmur of voices.

Answers

Answer:

1. fiddlers tuned

2. broken sounds

3. band played

4. loud blare

5. murmur of voices

Explanation:

What do you notice about the plot of baby shoes brainly.

Answers

The plot of a story often have a particular message it is trying to pass. What I noticed about the plot of for Sale baby shoes never worn is that shoes are said to be being given away instead of been sold and the story centers around grief associated with loss.

The plot of the story is about a grief-stricken woman who had lost her baby and had even given some names or titles of Little Shoes that was Never Worn.

In Kane's view of the story, he believed that the shoes are being given away instead of been sold. The narrative of the baby shoes, never worn." is the said to be fully called a six-word story. It is known to be a vivid example of  flash fiction or sudden fiction.

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Jose and zola want to purchase their first home. Jose makes $23. 50 an hour and works 40 hours per week. Zola makes $21. 50 an hour and works 40 hours of regular time and for the last three years, has also worked on average 5 hours of overtime a week. They have two car payments totaling $500 a month and one credit card with a minimum payment of $50 a month. What is their combined gross monthly income?.

Answers

Based on the computation done, the value of the combined gross monthly income is $7630.

Since there are four weeks in a month, Joe's income will be:

= 23.50 × 40 × 4

= 3760

The value of Zola's income will be:

= 21.50 × (40 + 5) × 4

= 21.50 × 45 × 4

= 3870

Therefore, the combined gross monthly income will be;

= $3760 + $3870

= $7630

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If $535 is invested at an interest rate of 6% per year and is compounded continuously, how much will the investment be worth in 10 years? use the continuous compound interest formula: a = pert $1307. 12 $974. 83 $973. 38 $403. 43.

Answers

The Amount of investment equals $974.83.

The continuous compound interest helps to calculate an investment that are reinvested into the balance over a infinite number of periods.

The formula for continuous compound interest is A=P^e^(r*t)

Amount of investment = $535 * e^(6%*10)

Amount of investment = $535 * 1.82211880039

Amount of investment = $974.833558209

Amount of investment = $974.83

Therefore, the Option B is correct since the Amount of investment equals $974.83.

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If the number of giraffes at congtin were reduced by 63.

Answers

Based on the information given, it can be noted that the computation shows that the ratio will be 3:7.

From the complete question, the data given was:

Giraffes = 124Other = 108New giraffe = 124 - (63% × 124) = 45

Therefore, the ratio will then be:

= 44:88 = 3:7

In conclusion, the ratio is 3:7.

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Which of the following may be allowed in a food preparation area.

Answers

Among the listed items, the one that may be allowed in a food preparation area is;

Wedding Band.

Food preparation can be regarded as the process of preparing food which may involve cooking and other activities.

However,, the place of cooking should be hygienic and contaminating items should be do away with.

Therefore, Among the listed items, the one that may be allowed in a food preparation area  is;

Wedding Band.

CHECK THE COMPLETE QUESTION BELOW;

the one that may be allowed in a food preparation area: Smoking, Chewing Gum, Pets, Wearing a Wedding Band

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On interval 0 ≤ x < 2π, where are the x-intercepts of y = cos(2x)? startfraction pi over 2 endfraction and startfraction 3 pi over 2 endfraction 0, π, and 2π startfraction pi over 2 endfraction, pi and startfraction 3 pi over 2 endfraction.

Answers

The x-intercepts of y = cos(2x) in the interval 0 ≤ x < 2π are π/4 and 7π/4

The x-intercepts of y = cos(2x) are gotten when y = 0.

So, y = cos(2x)

cos(2x) = 0

Taking inverse cos of both sides, we have

cos⁻¹cos(2x) = cos⁻¹(0)

2x = π/2

Dividing both sides by 2, we have

x = π/4

So, the other angle in the range 0 ≤ x < 2π is x = 2π - π/4 = 7π/4

So, the x-intercepts of y = cos(2x) in the interval 0 ≤ x < 2π are π/4 and 7π/4

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Answer: D

Explanation:

D on Edge

Choose the true statement about dressing in layers.

Answers

Dressing in layers means to wear the appropriate clothing for the season such as fall and winter. For example many wear several pieces of clothing on top of one another When the weather is cold you should dress in layers.

A player pays $15 to play a game in which a chip is randomly selected from a bag of chips. The bag contains 10 red chips, 4 blue chips, and 6 yellow chips. The player wins $5 if a red chip is selected, $10 if a blue chip is selected, and $20 if a yellow chip is selected. Let the random variable x represent the amount won from the selection of the chip, and let the random variable w represent the total amount won, where w=x−15. What is the mean of w ? $10. 50 answer a: $10. 50 a $4. 50 answer b: $4. 50 b −$4. 50 answer c: negative 4. 50 dollars c −$6. 50 answer d: negative 6. 50 dollars d −$10. 50.

Answers

The mean of the random variable w that represents the total amount won is; -$4.50

We are given quantity of chips inside the bag as;

Number of red chips = 10Number of blue chips = 4Number of Yellow chips = 6

Total number of chips = 20

Thus;

P(Red chips) = 10/20 = 0.5P(blue chips) 4/20 = 0.2P(Yellow Chips) = 6/20 = 0.3

Amount won from the selection of Red Chip = 0.5 * $5 = $2.5

Amount won from the selection blue Chip = 0.2 * $10 = $2

Amount won from selection of yellow chip = 0.3 * $20 = $6

Thus;

x = $2.5 + $2 + $6

x = $10.5

We are told that total amount won is gotten from;

w = x − 15

Thus;

w = 10.5 - 15

w = -$4.50

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Which topic is suitable for the size and scope of a five paragraph essay.

Answers

Answer:

essay on economic availability of the country

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