Select the correct answer.
Which pair of statements correctly compares the two data sets?
O
0
1
2
3
4
5
6
7
8
9
10
11
12
13
0
1
2
3
4
5
6
7
8
9
10
11
12
13
OA. The difference of the means is 1. This value is less than half of the mean absolute deviation of either data set.
OB .
The difference of the means is 1. This value is more than half of the mean absolute deviation of either data set.
OC The difference of the means is 1. This value is 1 times the mean absolute deviation of either data set.
OD. The difference of the means is 1. This value is 2 times the mean absolute deviation of either data set.
PLZ HELP 44POINTS
Answers
Answer:
A.
Step-by-step explanation:
✔️Find the Mean and Mean Absolute Value of the first data set:
Write out the data values:
1, 2, 4, 4, 5, 5, 6, 7, 9, 9, 9, 11
Mean = sum of all data values ÷ number of data values in the data set
Mean = 72 ÷ 12 = 6
M.A.D = sum of |data value - mean| ÷ the number of data values
|1 - 6| = 5
|2 - 6| = 4
|4 - 6| = 2
|4 - 6| = 2
|5 - 6| = 1
|5 - 6| = 1
|6 - 6| = 0
|7 - 6| = 1
|9 - 6| = 3
|9 - 6| = 3
|9 - 6| = 3
|11 - 6| = 5
Sum of |data value - mean| = 30
M.A.D = 30 ÷ 12 ≈ 2.5.
✔️Find the mean and M.A.D of the second data set following the same steps and formula:
Write out the data:
1, 3, 4, 6, 6, 6, 7, 9, 9, 10, 10, 13
Mean = 84 ÷ 12 = 7
Sum of |data value - mean| = 32
M.A.D = 32 ÷ 12 = 2.7
✔️Comparing both data sets,
The difference of the means = 7 - 6 = 1
Thus, the value of this difference, 1, is less than half of the M.A.D of both sets, 2.5 and 2.7.
Related Questions
What is the area of the trapezoid shown below?
Answers
Answer: where is the trapezoid
Step-by-step explanation:
One, no, or infinitely many solutions?
Answers
Answer:
One solution
x = 3
Step-by-step explanation:
3x + 5 + 6x - 7 = 25
combine like terms:
9x -2 = 25
add 2 to each side of the equation:
9x = 27
divide both sides by n9:
x = 3
The length of a piece of ribbon is 250 millimeters.
Which is the equivalent length in meters?
Answers
Answer:
250 mm = 0.25 m
Step-by-step explanation:
Answer:
0.25m
Step-by-step explanation:
There are 15 students on the debate team. Of these, 3 are boys. Give the ratio of boys to girls on the debate team in simplest form.
Answers
Answer:
Hiya! I see this is your first question on here, I hope you enjoy the website. Anyways, the answer is 1/4 I believe.
Step-by-step explanation:
15-3=12
3 : 12
1 : 4
P.S. smile for me and have a great day!
Help with these ASAP
Answers
So 105=10x
Find the value of f(-2) for the function f(x) = 4x + 10.
O A. -3
O B. -2
O c. 2
O D. 18
Answers
the value for the function is c
Simplify:
a) 3x + 5y - x + 2y
b)
3g + 5h + 4g - 2h
Answers
Answer:
[tex]\huge\boxed{a) 2x+7y}[/tex]
[tex]\huge\boxed{b) 7g+3h}[/tex]
Step-by-step explanation:
Part a:
= 3x + 5y - x + 2y
Combining like terms
= 3x - x + 5y + 2y
= 2x + 7y
Part b:
= 3g + 5h + 4g - 2h
Combining like terms
= 3g + 4g + 5h - 2h
= 7g + 3h
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807I need to bring my math grade up !!! Does anyone know that answer
Answers
Answer:
2/5 of hangar a = hangar b
Step-by-step explanation:
A music therapist was interested in investigating whether listening to music or composing music had an influence on both anxiety levels and oxygen saturation in children who were hospitalized for asthma-related illnesses. Thirty-two children spent 20 minutes listening to classical waltzes played on a piano. On a different day, they spent 20 minutes composing their own short pieces of music using a software program.
When listening to music: For the physiological measure, the critical value for t was larger than the test statistic for the observed data. For the anxiety measure, the critical value for t was smaller than the test statistic for the observed data.
When composing music: For the physiological measure, the critical value for t was larger than the test statistic for the observed data. For the anxiety measure, the critical value for t was larger than the test statistic for the observed data.
When writing the results of the music therapist's study, which of these statements reflects the correct conclusions that should be drawn from the results and then included as part of the interpretation paragraph?Question 8 options:
a) Music therapists should make pediatric asthma patients compose music in order to increase their oxygen saturation.
b) Music therapists should make pediatric asthma patients listen to music in order to reduce their anxiety.
c) Pediatric asthma patients should listen to music in order to increase their oxygen saturation.
d) Additional information is needed to draw a proper conclusion.
Answers
Answer:
The correct conclusion is;
d) Additional information is needed to draw a proper conclussion
Step-by-step explanation:
The given parameters are;
When listening to music;
Physiological measure Critical t > Test statistic Accept H₀
Anxiety measure Critical t < Test statistic Reject H₀
When composing music;
Physiological measure Critical t > Test statistic Accept H₀
Anxiety measure Critical t > Test statistic Accept H₀
When the test statistic is larger the critical 't'
Therefore, the test suggest that there is no difference between physiological and anxiety influence of composing music on pediatric asthma patients
There is sufficient statistical evidence to suggest that listening to music has an influence on the anxiety of pediatric asthma patients however, the nature of the influence is not specified and more information is needed to draw a proper conclusion
What is m∠1?
There is a horizontal line. Point B and D are lies on the line. There is one point C which is joined with point B and D to form a triangle CBD. The angle BCD is 70 degree. The angle CBD is denoted by 2. The supplementary angle of 2 is denoted by angle 1 which is line formed with segment BC. The line formed obtuse angle with CD is 130 degree.
A. 130°
B. 70°
C. 60°
D. 120°
Answers
Answer:
i think b
Step-by-step explanation:
Jordyn is weighing the ingredients on a kitchen scale to make bread. The bowl weighs 1 1/2 pounds. He adds several scoops of flour. the total weight of the bowl and the flour is 2 3/4pounds. If each cup weighs 5/16 pound, how many cups of flour does he add?
Answers
Answer: 4 pounds of flour
Step-by-step explanation:
If a pizza pie had
a diameter of 12
inches, what
would be its
circumference?
Answers
= π x 12
= 37.699
Rounded off is 37.70
Answer:
37.7 inches
Step-by-step explanation:
Formula of circumference:
[tex]2\pi r[/tex]
r = radius
In the current case,
radius is 6 inches
Hence,
circumference=
[tex]2*\pi *6\\= 12\pi\\= 37.6991118431[/tex]
≅ 37.7 inches
Feel free to mark it as brainliest
You want to buy some groceries there is a coupon that offers a %15 discount on your total bill your bill comes to $76 how much money will you save
Answers
Answer:
$64.6
Step-by-step explanation:
15% off $76 = -$11.4 = $64.6
which one ??????????????????????????
Answers
Answer:
That if I do not know friend, sorry
given f(x) = x^2 - 1 what is the value of f(10)
Answers
Step-by-step explanation:
f(10)=(10)²-1
f(10)=100-1
f(10)=99
Calculating a Data Value from a Percentile
The total mass of raisins in a package Normally
distributed, with a mean of 520 grams and a standard
deviation of 5 grams.
Use the z-table to answer the question.
What mass would be lower than the mass of 92% of
the packages?
O 525 grams
O 530 grams
O 550 grams
O 575 grams
Answers
Answer:
525 grams
Step-by-step explanation:
Answer:
525 grams is correct
ED2021
An architect’s blueprint for a new house shows the kitchen being 7 inches wide. If the scale used to create the blueprint is 0.5 in. = 1 ft, what is the actual width of the kitchen?
Answers
What do you call a rock music channel with no music?
Answers
Answer: Rock Silence? I dont know Rock No Music?
Step-by-step explanation:
Answer:
pure dead silence
Step-by-step explanation:
How many degrees does it take a capterpillar to turn upright
Answers
it is at least 180 degrees
Aretha had 9 pencils. She gave her
sister 1/3 of the pencils. How many
pencils did Aretha give her sister?
Answers
Answer:
3
Step-by-step explanation:
9 divided by 3 is 3
A diver jumps off of a diving board and is modeled by the equation d(t)= -16t2 +8t + 30. How long will it take for her to reach the water?
Answers
Answer: (1/4,31)
Step-by-step explanation: Use the formula x = − b/2a a to find the maximum and minimum.
Select all expressions that are equivalent to 2+y+y+y+y+y+3?
Answers
If you add the choices as a comment, I’m happy to help more.
Help eve hehedgrhhdhrgr
Answers
Answer:
7.47
Step-by-step explanation:
Please Like and hope you have a good day get your math on!!!
All the fourth-graders in a certain elementary school took a standardized test. A total of 82% of the students were found to be proficient in reading, 74% were found to be proficient in mathematics, and 65% were found to be proficient in both reading and mathematics.A student is chosen at random. What is the probability that the student is proficient in neither reading nor mathematics
Answers
Answer:
0.09 = 9% probability that the student is proficient in neither reading nor mathematics
Step-by-step explanation:
We solve this question treating the events as Venn probabilities.
I am going to say that:
Event A: A student is proficient in reading.
Event B: A student is proficient in mathematics.
A total of 82% of the students were found to be proficient in reading
This means that [tex]P(A) = 0.82[/tex]
74% were found to be proficient in mathematics
This means that [tex]P(B) = 0.74[/tex]
65% were found to be proficient in both reading and mathematics.
This means that [tex]P(A \cap B) = 0.65[/tex]
What is the probability that the student is proficient in neither reading nor mathematics?
This is:
[tex]P = 1 - P(A \cup B)[/tex]
In which
[tex]P(A \cup B) = P(A) + P(B) - P(A \cap B)[/tex]
With the values that we have:
[tex]P(A \cup B) = 0.82 + 0.74 - 0.65 = 0.91[/tex]
Then
[tex]P = 1 - P(A \cup B) = 1 - 0.91 = 0.09[/tex]
0.09 = 9% probability that the student is proficient in neither reading nor mathematics
(k + 3)by the power of 3
Answers
15, 19, 23, 27.... what is the 52nd term in the arithmetic sequence?
Answers
Answer:
219
Step-by-step explanation:
a is the number needed to add from the first to the second which is 4(must be constant)
b is the term zero means 15-a which is 15-4=11
Solve Similar triangles
Solve for x.
x=?
Answers
Answer:
x = 2
Step-by-step explanation:
AB/BC = AD/DE
[tex]\frac{2}{1}[/tex] = [tex]\frac{2+x}{2}[/tex]
cross-multiply:
2+x = 4
x = 2
Expected rate of return and risk - B.J. Gautney enterprises is evaluating a security. One year treasury bills are currently paying 4.3 %. Calculate the investment's expected return and its standard deviation. Should Gautney invest in this security?
Probability/ return: 0.20/ -4%; 0.50/ 4%; 0.10/ 7%; 0.20/ 8%.
The investment's expected return is _% (round the two decimal places)
The investment's standard deviation is % (round the two decimal places)
Should Gautney invest in this security? (select the best choice below)
a) yes. B.J. Gautney Enterprices should invest in this investment because the return is lower than treasury bill and the level of risk higher than the treasury bill.
B) no. B.J. Gautney Enterprises should not invest in this investment because the return is lower than the treasury bill and the level of risk higher than the treasury bill.
Answers
Answer:
Step-by-step explanation:
[tex]\text{Investment's Expected Return} = (0.20 \times -0.04) + (0.50 \times 0.04) + (0.10 \times 0.07) + (0.20 \times 0.08) \\ \\ = (-0.008)+(0.02)+(0.007) + (0.016) \\ \\ \text{= 0.035}\\ \\ = 3.50\%}[/tex]
[tex]Var (r) = [(-0.04- 0.035)^2 * 0.2] + [(0.04 - 0.035)^2 * 0.5] + [(0.07 - 0.035)^2 * -0.10] + [(0.08 - 0.035)^2 * 0.20] \\ \\ = (-5*10^{-6} )+(1.25*10^{-5})+(-1.225*10^{-4}) + (4.05 \times 10^{-4}) \\ \\= 0.001665[/tex]
[tex]SD= \sqrt{Var} = \sqrt{0.001665}= 0.0408 \\ \\ =\mathbf{0.04 \ to \ 2 \ d.p}[/tex]
[tex]\text{B) no. B.J. Gautney Enterprises should not invest in this investment because the} \\ \\ \text{return is lower than the treasury bill and the level of risk higher than the treasury bill.}[/tex]
Find the sum. Enter your answer in the box below as a fraction, using the slash mark ( / ) for the fraction bar.
2/7+3/7
Answers
Answer:
5/7
Step-by-step explanation:
2/7 + 3/7
Denominator are equal so adding numerator,
(2+3)/7 = 5/7
PLEASE HELP ASAP!!!!