Explanation Given Information: The provided table are, Interval Midpoint ( x ) Frequency ( f ) 6.5 − 9.5 8 3 9.5 − 12.5 11 10 12.5 − 15.5 14 4 15.5 − 18.5 17 9 18.5 − 21.5 20 15 21.5 − 24.5 23 28 24.5 − 27.5 26 3 27.5 − 30.5 29 2 Formula used: The mean of the frequency distribution is computed as: x ¯ = sum of x f sum of f Calculation: Consider the following data: Interval Midpoint ( x ) Frequency ( f ) 6.5 − 9.5 8 3 9.5 − 12.5 11 10 12.5 − 15.5 14 4 15.5 − 18.5 17 9 18.5 − 21.5 20 15 21.5 − 24.5 23 28 24.5 − 27.5 26 3 27.5 − 30.5 29 2 Compute the mean using the formula x ¯ = sum of x f sum of f as follows: Compute the value of xf as follows: Interval Midpoint ( x ) Frequency ( f ) xf 6

Bundle: Elementary Technical Mathematics, Loose-leaf Version, 12th + WebAssign Printed Access Card, Single-Term

12th Edition

ISBN: 9781337890199

Author: Dale Ewen

Publisher: Cengage Learning

See similar textbooks

Concept explainers

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of tw…

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency o…

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow compar…

Videos

Question

Chapter 15, Problem 13R

To determine

To calculate: The mean from the following frequency distribution:

Interval

Midpoint

(x)

Frequency (f)

6.5−9.5

8

3

9.5−12.5

11

10

12.5−15.5

14

4

15.5−18.5

17

9

18.5−21.5

20

15

21.5−24.5

23

28

24.5−27.5

26

3

27.5−30.5

29

2

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 15, Problem 12R

Chapter 15, Problem 14R

Students have asked these similar questions

(10 points) Let f(x, y, z) = ze²²+y². Let E = {(x, y, z) | x² + y² ≤ 4,2 ≤ z < 3}. Calculate the integral y, f(x, y, z) dV.

(14 points) Let f: R3 R and T: R3. →R³ be defined by f(x, y, z) = ln(x²+ y²+2²), T(p, 0,4)=(psin cos 0, psin sin, pcos). (a) (4 points) Write out the composition g(p, 0, 4) = (foT)(p,, ) explicitly. Then calculate the gradient Vg directly, i.e. without using the chain rule. (b) (4 points) Calculate the gradient Vf(x, y, z) where (x, y, z) = T(p, 0,4). (c) (6 points) Calculate the derivative matrix DT(p, 0, p). Then use the Chain Rule to calculate Vg(r,0,4).

(10 points) Let S be the upper hemisphere of the unit sphere x² + y²+2² = 1. Let F(x, y, z) = (x, y, z). Calculate the surface integral J F F-dS. S

Chapter 15 Solutions

Bundle: Elementary Technical Mathematics, Loose-leaf Version, 12th + WebAssign Printed Access Card, Single-Term

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.

The mean from the following frequency distribution: Interval Midpoint ( x ) Frequency ( f ) 6.5 − 9.5 8 3 9.5 − 12.5 11 10 12.5 − 15.5 14 4 15.5 − 18.5 17 9 18.5 − 21.5 20 15 21.5 − 24.5 23 28 24.5 − 27.5 26 3 27.5 − 30.5 29 2

Solution Summary: The author calculates the mean of the frequency distribution from the following data: Interval Midpoint (x) Frequency (f).

Concept explainers

Videos

To calculate: The mean from the following frequency distribution:

Interval

Midpoint

(x)

Frequency (f)

6.5−9.5

8

3

9.5−12.5

11

10

12.5−15.5

14

4

15.5−18.5

17

9

18.5−21.5

20

15

21.5−24.5

23

28

24.5−27.5

26

3

27.5−30.5

29

2

Want to see the full answer?

Chapter 15 Solutions

Interval	Midpoint (x)	Frequency (f)
6.5−9.5	8	3
9.5−12.5	11	10
12.5−15.5	14	4
15.5−18.5	17	9
18.5−21.5	20	15
21.5−24.5	23	28
24.5−27.5	26	3
27.5−30.5	29	2

The mean from the following frequency distribution: Interval Midpoint ( x ) Frequency ( f ) 6.5 − 9.5 8 3 9.5 − 12.5 11 10 12.5 − 15.5 14 4 15.5 − 18.5 17 9 18.5 − 21.5 20 15 21.5 − 24.5 23 28 24.5 − 27.5 26 3 27.5 − 30.5 29 2

Solution Summary: The author calculates the mean of the frequency distribution from the following data: Interval Midpoint (x) Frequency (f).

Concept explainers

Videos

To calculate: The mean from the following frequency distribution: Interval Midpoint (x) Frequency (f) 6.5−9.5 8 3 9.5−12.5 11 10 12.5−15.5 14 4 15.5−18.5 17 9 18.5−21.5 20 15 21.5−24.5 23 28 24.5−27.5 26 3 27.5−30.5 29 2

Want to see the full answer?

Chapter 15 Solutions

To calculate: The mean from the following frequency distribution:

Interval

Midpoint

(x)

Frequency (f)

6.5−9.5

8

3

9.5−12.5

11

10

12.5−15.5

14

4

15.5−18.5

17

9

18.5−21.5

20

15

21.5−24.5

23

28

24.5−27.5

26

3

27.5−30.5

29

2