Answered: 2. What is the standard deviation of…

2. What is the standard deviation of the number of bags of chips that Beth will buy? Answer choices: 1.021 2.041 4.167 8.334

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...

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Question

For questions 1 - 2, use the described binomial probability distribution to calculate the mean (expected value) and the standard deviation. Beth is having a party. She is having a hard time choosing what kinds of chips to buy. She decides to walk down the aisle at the supermarket and roll a number cube at each bag of chips. If she rolls a 3, she will buy the bag of chips; if she rolls any other number, she will not buy the bag. There are 30 different kinds of chips in the store.

2. What is the standard deviation of the
number of bags of chips that Beth will buy?
Answer choices:
1.021
2.041
4.167
8.334

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