A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 1 of 2: Suppose a sample of 2346 floppy disks is drawn. Of these disks, 1971 were not defective. Using the data, estimate the proportion of disks which are defective. Enter your answer as a fraction or a decimal number rounded to three decimal places.

Answers

Answer 1

Answer:

The proportion of disks which are defective is 0.16.

Step-by-step explanation:

The proportion of defective disks is the number of defective disks in the sample divided by the size of the sample.

In this question:

2346 disks.

1971 not defective, so 2346 - 1971 = 375 defective.

[tex]p = \frac{375}{2346} = 0.16[/tex]

The proportion of disks which are defective is 0.16.


Related Questions

what 2-1+46-2x0

I tried O but it didn't work

Answers

Answer:

answer is 47

Step-by-step explanation:

use the rule, 2x0 = 0 then (2- 1) that's 1 and then (46-0) that's 46 so 1 + 46 is 47

can you help me with 1 - 4

Answers

Me das mas información porfavor?

Find the area of shaded part.

Answers

Answer:

13.76

Step-by-step explanation:

First you have to find the area of the square and then subtract the area of the circle from it.

A=8x8

Area of the Square is 64

[tex]a = \pi { 4}^{2} [/tex]

a= 50.24

A=64-50.25

THE FINAL AREA IS 13.76

A baker uses 24 cups of flour and 28 cups of water for a recipe. The​ flour-to-water ratio 24:28 How much water does the baker need if he uses only 6 cups of​ flour?

Answers

Answer: 7

Step-by-step explanation: So 24:28 is equal to 6:? so if we divide 24 by 6 we get 4. So 28 divided by 4 is 7. 6:7 is equal to 24:28.

Hope this helps!

Maggie picked 2/5 basket of strawberries and Sally picked 2/4. How much more did Sally pick?

Answers

Answer:

Step-by-step explanation:

2/5 = 0.4

2/4 = 0.5

0.5 - 0.4 = 0.1

Sally picked 1/10 of a basket more than Maggie picked

Answer:

1 this could change depending on how many berries are in each basket

Step-by-step explanation:

2/5 = 0.4

2/4 = 0.5

Functions:

In image 1: Evaluate the functions

In image 2: Given the functions, find their inverse, if possible and if not possible, redefine Domain or Range

Answers

Answer:

Image 1

1. x = 4

f(4) = (- 3*4 + 1) / 6 = -11/6

2. x = -2/3

f(-2/3) = -3*(-2/3) + 10 = 2 + 10 = 12

3. x = -5

f(-5) = [tex]\sqrt{-(-5)/20}[/tex] = [tex]\sqrt{5/20}[/tex] = [tex]\sqrt{1/4}[/tex] = 1/2Image 2To work out the inverse, substitute f(x) with x and x with y, then solve for y. The new function is the inverse of the given.

1. f(x) = 5x + 3

x = 5y + 3 ⇒ 5y = x - 3 ⇒ y = (x - 3)/5f⁻¹(x) =  (x - 3)/5

2. f(x) = 4/5x

x = 4/5y ⇒ y = 5/4xf⁻¹(x) = 5/4x

3. f(x) = (2x + 7)/4

x = (2y + 7)/4 ⇒ 2y + 7 = 4x ⇒ 2y = 4x - 7 ⇒ y = 2x - 3.5f⁻¹(x) = 2x - 3.5

4. f(x) = (2x + 7) /(x + 3) = 2 + 1/(x + 3)

x = 2 +  1/(y + 3) ⇒ x - 2 = 1/(y + 3) ⇒ y + 3 = 1/(x - 2) ⇒ y = (1 - 3x + 6)/(x - 2) ⇒ y = (7 - 3x)/(x - 2)f⁻¹(x) =  (7 - 3x)/(x - 2)

5. f(x) = [tex]\sqrt{x - 4}[/tex]

x = [tex]\sqrt{y - 4}[/tex] ⇒ x² = y - 4 ⇒ y = x² + 4f⁻¹(x) = x² + 4

The area of a wall to be tiled in 1.5 metres by 2.5 metres.
Tiles are 50cm by 50cm
The tiles are £0.99 each.
How much will the tiles cost in pounds

Answers

Answer:

£14.85

Step-by-step explanation:

The total number of tiles needed

= 5 × 3

= 15

∴ The total cost of the tiles

= £0.99 × 15

= £14.85

Plsss I need help it’s due today at 2:00 I’ll reward brainiest it’s super easy

Answers

Answer:

1/3

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

2/3 * 1/2 = 1/3

Select the statement(s) that is true:

a. 8 + 4 = 4( 2+ 1)

b. 2( 5 + 7) = 10+ 14

c. 8(7) = 8 ( 5+2)

d. 8 (7) = 8 ( 6 + 1)

Answers

Answer:

Use photo math, it will tell you it they are true or not

Answer: B & C & D if you look at it, it going to be the same answer.

1. B is 5+7=12 2x12=24 and 10+14=24

2. C is 8x7=56 and 5+2=7 that is 7x8=5

3. D is 8x7=56 and 6+1=7 8x7=56

So all three of that is true because it the same answer. Hope you understand

Step-by-step explanation: Hope this help :D

BRAINLIEST ANSWER ☘️

order the numbers from least to greatest

0.222

0.18

0.1

0.24

0.21

Answers

Answer:

0.1, 0.18, 0.21, 0.222, 0.24

Explanation:

look at the first number:

between 0.1 and 0.18, 0.1 is smaller therfore it is the least

next to that would be 0.18

next, 0.21, 0.222, and 0.24 all has the same first number so take a look at the second number:

0.21 would be the third number since the second number is 1, which is the smaller number out of 3

the 4th number would be 0.222 because 0.22 is less than 0.24

lastly, the greatest or largest number would 0.24

Question 7 Find the volume of the prism.​

Answers

Answer: i cant see thw whoke length but if both are 8 if 32

Step-by-step explanation:

8 × 2 16 then if the other sides 8 8×2 = 16 16+16 =32

Trever invested $10,000 in an account that earns 8.5%
interest that is compounded monthly.
(a) Write an exponential model for the balance of the
account.
(b) Determine the amount of money in the account
after 15 years.

Answers

Answer:

Results are below.

Step-by-step explanation:

Giving the following information:

Trever invested $10,000 in an account that earns 8.5% interest that is compounded monthly.

First, we need to calculate the monthly interest rate:

i= 0.085 / 12= 0.00708

Now, to calculate the future value of the investment, we need to use the following formula:

FV= PV*(1+i)^n

PV= initial investment

i= interest rate

n= number of periods

In this case:

FV= 10,000*(1.00708^n)

Finally, for 15 years:

n= 15*12= 180 months

FV= 10,000*(1.00708^180)

FV= $35,605.31

select the three expressions that are equivalent to 3/5a + 10
A. 1/5a + 10 + 2/5a
B. a(3/5 + 10)
C. 14 + 3/5a - 4
D. 1/5 (3a + 50)
E. 10 + 2/5a - a + 1/5a

Answers

Answer:

A, C and D

Step-by-step explanation:

Given

[tex]\frac{3}{5}a + 10[/tex]

Required

Select 3 equivalent expressions

[tex]\frac{3}{5}a + 10[/tex]

Express 3 as 2 + 1

[tex]\frac{2 + 1}{5}a + 10[/tex]

Rewrite as:

[tex]\frac{2a + a}{5} + 10[/tex]

Split

[tex]\frac{2a}{5} + \frac{a}{5} + 10[/tex] ----- Option (A)

[tex]\frac{3}{5}a + 10[/tex]

Express 10 as 14 - 4

[tex]\frac{3}{5}a + 14 - 4[/tex]

Rewrite as:

[tex]14+\frac{3}{5}a - 4[/tex] --- Option (C)

[tex]\frac{3}{5}a + 10[/tex]

Factor out 1/5

[tex]\frac{1}{5}(3a + 50)[/tex] --- Option D

Answer:

Option D

Step-by-step explanation:

You can give the guy/girl above Brainliest ^^

They rlly went out of their way to answer that question for you.

They deserve it!

3. Suppose you invest $2250 in a CD that earns 3% APR and is compounded quarterly. The CD matures in 2 years. How much will this CD be worth at maturity? ​

Answers

20-%7dmisisshzusjsnshsusnnshsusnsnsushsyshs

Which set of points on the graph represents equivalent ratios?
70
60
F
50
40
30
.
20
10
1
2 3
4
5
6 7
Х
points C, D, and F
O points B, C, and D
points B, C, and F
O points A, C, and D
Ο Ο Ο

Answers

Answer:

C or otherwise BCD

Step-by-step explanation:

right on edge

3(6x)-8x = -2+5 (2x+1)

Answers

Answer:

x = 3

Step-by-step explanation:

So you will distribute the number beside the ( )

so the equation be looking like :

18x - 8x = 10x + 5 - 2

now combine like terms

18x - 8x = 10x

5 - 2 = 3

10x = 10x +3

now subtract 10x to the other side they cross off

leaving x = 3

and so that's your answer

hope this helps

Answer:

this question is wrong i think

What note receives one beat in 2/4?

Answers

answer: a quarter note

Factor the expression 5m2−20m

Answers

Answer: 5m (m - 4)

Step-by-step explanation:

Just divide by the highest common factor which for the constants it’s 5 and for the variables it’s m

What is the area of the shape below? 6 yd 5 yd 4 yd 9 yd V​

Answers

Answer:24

Step-by-step explanation:

A rectangular park has an area of A square yards. The length of the park is 50 yards.
Which equation represents, w, the width of the park in yards?
w= A - 2(50)
w=50/А
w=А/50
w= A - 25

Answers

Answer:

i believe it would be   w=A/50

Step-by-step explanation:

PLEASE HELP AGAIN!! Max deposited $4,008 in a savings account with simple interest. Four years later, he had earned $641.28 in interest. What was the interest rate?​

Answers

Answer:

4%

Step-by-step explanation:

For simple interest, the equation is I = PRT, where I is the interest, P is the principal/amount invested, R is the rate as a decimal, not percentage, and T is time in years.

641.28 = (4008)(r)(4)

641.28 = 16,032r

r = 0.04 = 4%

help plsssss importantt...............

Answers

Hey! So i just answered on that other one!! I’m sorry that guy wasted your points:(( check your notifs my answer should be there :)

Given f(x) = V(3 x – 12) +2, what is the range in set notation?

Answers

Answer:

Step-by-step explanation:

[2,∞)

Answer:

it's 2

Step-by-step explanation:

Janet plants 20 varieties of flowers in the spring She reports that 90% of flowers she planted have bloomed .

How many varieties have bloomed

Answers

Answer:

18 varieties

Step-by-step explanation:

Total varieties of flowers that she planted = 20

100% = 20

1% = 20 ÷ 100 = 0.20

90% = 0.20 x 90 = 18

Answer:

18 flower varieties have bloomed.

Step-by-step explanation:

What is the ratio of the leg opposite the angle to the leg adjacent to the
angle.

Answers

Answer:

tangent (angle) or tan (angle)

Step-by-step explanation:

tangent (angle) = the leg opposite the angle / the leg adjacent to the angle

the first one help please asap, i will mark as brainliest

Answers

Answer:

They originally paid $28,750

Source:

Trust me bro, I used a calculator

59,000-1500= 57,500/2=28,750

A shopkeeper marks the price of his goods 20%
above the purchase price but allows 10% discount to
his customers. He earns a profit of Rs. 120 to do so.
What was the actual purchase price of the goods?​

Answers

Hope this helps can I have brainlest plzz

If f(x)=3x-1 and g(x)=x2+2 what is f[g(x)]

Answers

Answer:

Value of f[g(x)] = 3x² + 5

Step-by-step explanation:

Given:

f(x) = 3x - 1

g(x) = x² + 2

Find:

Value of f[g(x)]

Computation:

f(x) = 3x - 1

g(x) = x² + 2

So,

f[g(x)] = 3(x² + 2) - 1

f[g(x)] = 3x² + 6 - 1

Value of f[g(x)] = 3x² + 5

Wayne plans to make a nut mixture in the weight ratio 1:2:5, containing cashows, almonds, and pecans, respectively. Which situation represents the function f() = 2p?


O the number of pounds of almonds Wayne needs, if he plans to use p pounds of cashews
O the number of pounds of cashews Wayne needs, if he plans to use p pounds of almonds
O the number of pounds of almonds Wayne needs, if he plans to use p pounds of pecans
O the number of pounds of pecans Wayne needs, if he plans to use p pounds of almonds​

Answers

Answer:

the number of pounds of cashews Wayne needs, if he plans to use p pounds of almonds

Step-by-step explanation:

Ration of Almonds:cashows = 1:2

Almonds/cashows = 1/2

2Almonds = cashows

f() = 2p <--> cashows = 2Almonds

As a result, the function represents the number of pounds of cashews Wayne needs, if he plans to use p pounds of almonds

How was Franklin D. Roosevelt a lasting impact even on today's society​

Answers

Answer:

Franklin Delano Roosevelt, often referred to by his initials FDR, was an American politician who served as the 32nd president of the United States from 1933 until his death in 1945. A member of the Democratic Party, he won a record four presidential elections and became a central figure in world events during the first half of the 20th century. Roosevelt directed the federal government during most of the Great Depression, implementing his New Deal domestic agenda in response to the worst economic crisis in U.S. history. As a dominant leader of his party, he built the New Deal Coalition, which defined modern liberalism in the United States throughout the middle third of the 20th century. His third and fourth terms were dominated by World War II, which ended shortly after he died in office.

Step-by-step explanation:

to this ‘Great Man Theory’ it can be said that Franklin Delano Roosevelt upheld his victorious and highly regarded government through means of social, economic and political reforms, as well as ambitious personal and strategic decisions that have successfully remained influential to American society today and maintained his image as a prominent historic leader.

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