Suppose 26% of all small businesses are owned by a particular group of people. In a random sample of 350 small businesses, let x be the number owned by that group. a. Find the mean of x. b. Find the standard deviation of x. c. Find the z-score for the value x = 99.5. d. Find the approximate probability that, in a sample of 350, x is 100 or more.
Suppose 26% of all small businesses are owned by a particular group of people. In a random sample of 350 small businesses, let x be the number owned by that group. a. Find the mean of x. b. Find the standard deviation of x. c. Find the z-score for the value x = 99.5. d. Find the approximate probability that, in a sample of 350, x is 100 or more.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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