X ~ N(50, 9). Suppose that you form random samples of 25 from this distribution. Let X be the random variable of averages. Let ΣX be the random variable of sums. Part (e) Sketch the graph, shade the region, label and scale the horizontal axis for X, and find the probability. (Round your answer to four decimal places.) P(48 < X < 54) = Part (f) Sketch the graph, shade the region, label and scale the horizontal axis for X, and find the probability. (Round your answer to four decimal places.) P(13 < X < 46) = Part (g) Give the distribution of ΣX. ΣX ~ ,
X ~ N(50, 9). Suppose that you form random samples of 25 from this distribution. Let X be the random variable of averages. Let ΣX be the random variable of sums. Part (e) Sketch the graph, shade the region, label and scale the horizontal axis for X, and find the probability. (Round your answer to four decimal places.) P(48 < X < 54) = Part (f) Sketch the graph, shade the region, label and scale the horizontal axis for X, and find the probability. (Round your answer to four decimal places.) P(13 < X < 46) = Part (g) Give the distribution of ΣX. ΣX ~ ,
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 8CT
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Question
X ~ N(50, 9). Suppose that you form random samples of 25 from this distribution. Let
X
be the random variable of averages. Let ΣX be the random variable of sums.
Part (e)
Sketch the graph, shade the region, label and scale the horizontal axis for
probability . (Round your answer to four decimal places.)
X,
and find the P(48 < X < 54) =
-
Part (f)
Sketch the graph, shade the region, label and scale the horizontal axis forX,and find the probability. (Round your answer to four decimal places.)
P(13 < X < 46) = -
Part (g)
Give the distribution of ΣX.
ΣX ~
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