10 It is known that 15% of a large constituency voted for the Working Together Party (WTP) at the last election. A poll of 100 people is taken and they are asked whether they voted WTP. a What is the mean and standard deviation for this poll? b What is the probability that in the sample, the number of WTP voters lies within half a standard deviation of the mean?
10 It is known that 15% of a large constituency voted for the Working Together Party (WTP) at the last election. A poll of 100 people is taken and they are asked whether they voted WTP. a What is the mean and standard deviation for this poll? b What is the probability that in the sample, the number of WTP voters lies within half a standard deviation of the mean?
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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![10 It is known that 15% of a large constituency voted for the Working Together Party (WTP) at the last
election. A poll of 100 people is taken and they are asked whether they voted WTP.
a What is the mean and standard deviation for this poll?
b What is the probability that in the sample, the number of WTP voters lies within half a standard
deviation of the mean?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc82b065c-b429-427c-93a3-8aa6943a431e%2Fef0ddfb8-c524-42af-875b-d6df1c6c2e92%2F2jz3mli_processed.jpeg&w=3840&q=75)
Transcribed Image Text:10 It is known that 15% of a large constituency voted for the Working Together Party (WTP) at the last
election. A poll of 100 people is taken and they are asked whether they voted WTP.
a What is the mean and standard deviation for this poll?
b What is the probability that in the sample, the number of WTP voters lies within half a standard
deviation of the mean?
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