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1. (a) (b) (c) Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 500 and a standard deviation of 100. Find the probability that a student will score over 650. less than 459. between 325 and 675. Answer: Answer: Answer:

1. (a) (b) (c) Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 500 and a standard deviation of 100. Find the probability that a student will score over 650. less than 459. between 325 and 675. Answer: Answer: Answer:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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iii. iv. is the distribution of the average score exactly or approximately normal? Explain. The distribution of the average score is (circle one) exactly / approximately normally distributed. Because :. What is the probability that the average score of the 16 examinations is over 650? Answer:
Transcribed Image Text:iii. iv. is the distribution of the average score exactly or approximately normal? Explain. The distribution of the average score is (circle one) exactly / approximately normally distributed. Because :. What is the probability that the average score of the 16 examinations is over 650? Answer:
1. (a) (b) (c) D Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 500 and a standard deviation of 100. Find the probability that a student will score (f) over 650. less than 459. between 325 and 675. (d) If a school only admits students who score over 680, what proportion of the students pool would be eligible for admission? Answer: i. Answer: ii. Answer: What limit (score) would you set that makes the top 20% of the students eligible? (Choose closest number in table. Do not interpolate). what is the expected average score? Answer: If 16 examinations are selected at random and their mean is calculated, Answer: Answer: what is the standard deviation for the average score? Answer:
Transcribed Image Text:1. (a) (b) (c) D Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 500 and a standard deviation of 100. Find the probability that a student will score (f) over 650. less than 459. between 325 and 675. (d) If a school only admits students who score over 680, what proportion of the students pool would be eligible for admission? Answer: i. Answer: ii. Answer: What limit (score) would you set that makes the top 20% of the students eligible? (Choose closest number in table. Do not interpolate). what is the expected average score? Answer: If 16 examinations are selected at random and their mean is calculated, Answer: Answer: what is the standard deviation for the average score? Answer:
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