A laptop producer has been getting complaints on the batteries they install. Particularly., the customers complain about an overheating problem. A quality control specialist is investigating the issue and unknown to her, there are 10 overheating batteries in the batch of 30 that she is sampling from. If she randomly samples 6 batteries, what is the standard deviation of the number of overheating batteries she can encounter?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A laptop producer has been getting complaints on the batteries they install. Particularly, the customers complain about an overheating problem. A quality control specialist is investigating the issue and unknown to her, there are
10 overheating batteries in the batch of 30 that she is sampling from. If she randomly samples 6 batteries, what is the standard deviation of the number of overheating batteries she can encounter?
O A. 1.155
O B. 1.333
O C. 1.050
O D. 1.103
Transcribed Image Text:A laptop producer has been getting complaints on the batteries they install. Particularly, the customers complain about an overheating problem. A quality control specialist is investigating the issue and unknown to her, there are 10 overheating batteries in the batch of 30 that she is sampling from. If she randomly samples 6 batteries, what is the standard deviation of the number of overheating batteries she can encounter? O A. 1.155 O B. 1.333 O C. 1.050 O D. 1.103
The probability that it rains in London on a random day in fall is 0.4. A student walks to campus for classes and sometimes forgets to bring his umbrella. Independent of the weather, the probability that he forgets his umbrella on
a random day is 0.5. What is the probability that he will get wet walking to campus on a given day in fall?
O A. 0.90
O B. 0.70
O C. 0.10
O D. 0.20
Transcribed Image Text:The probability that it rains in London on a random day in fall is 0.4. A student walks to campus for classes and sometimes forgets to bring his umbrella. Independent of the weather, the probability that he forgets his umbrella on a random day is 0.5. What is the probability that he will get wet walking to campus on a given day in fall? O A. 0.90 O B. 0.70 O C. 0.10 O D. 0.20
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