Answered: B. Direction: Consider the number of… | bartleby

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 22PFA

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Related questions

Question

MAD - 2x
2x-x
N
B. Direction: Consider the number of hours per week spent by 50 students
playing computer games. Complete the frequency distribution table by finding
the unknown values. Find the range, mean absolute deviation, variance and
standard deviation.
Solution:
f
x
x-x
Ix-x
fx-x
(x-x)² f(x-x)²
2
7
8
14
9
2x-x) =
Σ16-1²-
Intervals
40-44
35-39
30-34
25-29
20-24
15-19
10-14
5-9
6
3
1
N = 50
Σfx.
a. To solve for the Mean:
Variance:
=
b. To solve for the Range:
R=UL-LL
c. To solve for the Mean Absolute Deviation:
MAD =
Σflx-x
N
6.
i =
d. To solve for the
0² =
Σf(x-x)²
N-1
e. To solve for the
Standard Deviation:

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