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(b) The approximate probability that the average test score exceeds 65 in the class of size 36 is (B). Find the valu Answer: (c) Which probability is larger? Select one: None. They are equal. That in the class of size 36. That in the class of size 100.

(b) The approximate probability that the average test score exceeds 65 in the class of size 36 is (B). Find the valu Answer: (c) Which probability is larger? Select one: None. They are equal. That in the class of size 36. That in the class of size 100.

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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(b) The approximate probability that the average test score exceeds 65 in the class of size 36 is (B). Find the value of B. Answer: (c) Which probability is larger? Select one: None. They are equal. That in the class of size 36. that in the class of size 100.
Transcribed Image Text:(b) The approximate probability that the average test score exceeds 65 in the class of size 36 is (B). Find the value of B. Answer: (c) Which probability is larger? Select one: None. They are equal. That in the class of size 36. that in the class of size 100.
Let us suppose that a particular lecturer manages, with probability 1, to develop exams that have mean 60 and standard deviation 12. The lecturer is teaching two classes, one of size 100 and the other one of size 36, and is about to give an exam to both classes. We treat all students as being independent. Give your answers below in three decimal places. (a) The approximate probability that the average test score in the class of size 100 exceeds 65 is (a), where is the cumulative distribution function of a standard normal random variable. Find the value of a. Answer:
Transcribed Image Text:Let us suppose that a particular lecturer manages, with probability 1, to develop exams that have mean 60 and standard deviation 12. The lecturer is teaching two classes, one of size 100 and the other one of size 36, and is about to give an exam to both classes. We treat all students as being independent. Give your answers below in three decimal places. (a) The approximate probability that the average test score in the class of size 100 exceeds 65 is (a), where is the cumulative distribution function of a standard normal random variable. Find the value of a. Answer:
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