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.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

y= -x +5 -5 O 10 O 25 O 50 5
pls show me step by step. thanks
Use triangle XYZ to evaluate each expression
Find X cand Y 18 38
Classify the property shown: 3+5=5+3 *
Subtract:
Write in y = m x + b the following: x/5 + y/8=-1 please type
Simplify: 364a y
Evaluate the given equation z (bar) where z= Answer: b.--V C. d. 즐 +
Find the product, simplified: -v (- + +“, y² + "v") = 16 16 807 500y10 560
Use a change of variable to evaluate: In 4 3+2ez