X-N(70, 13). Suppose that you form random samples of 25 from this distribution. Let X be the random variable of averages. Let X be the random variable of sums Part (a) Sketch the distributions of X and X on the same graph. X A A S 55 60 65 70 75 80 85 55 60 65 70 A 75 A 文 80 85 Sketch the distributions of X and X on the same graph. A A 35 60 65 70 75 80 85 55 60 65 70 73 80 85 A A 60 63 70 75 80 83 55 60 65 70 75 80 85
X-N(70, 13). Suppose that you form random samples of 25 from this distribution. Let X be the random variable of averages. Let X be the random variable of sums Part (a) Sketch the distributions of X and X on the same graph. X A A S 55 60 65 70 75 80 85 55 60 65 70 A 75 A 文 80 85 Sketch the distributions of X and X on the same graph. A A 35 60 65 70 75 80 85 55 60 65 70 73 80 85 A A 60 63 70 75 80 83 55 60 65 70 75 80 85
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 10E
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Question
Couldn't take another picture, but I need help with this problem it has parts a-i. Could you explain how to get the answer to a-d.
b) Give the distribution of X. (Enter an exact number as an integer, fraction, or decimal.)
c) Sketch the graph, shade the region, label and scale the horizontal axis for &, and find the probability. (Round your answer to four decimal places.)
d) Find the 20th percentile. (Round your answer to two decimal places.)
Transcribed Image Text:X-N(70, 13). Suppose that you form random samples of 25 from this distribution. Let X be the random variable of averages. Let X be the random variable of sums
Part (a)
Sketch the distributions of X and X on the same graph.
X
A A
S
55
60
65
70 75
80
85
55
60
65
70
A
75
A
文
80
85
Transcribed Image Text:Sketch the distributions of X and X on the same graph.
A A
35
60 65
70 75 80 85
55
60
65
70 73 80
85
A A
60
63
70
75
80
83
55
60
65
70
75
80
85
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