An aptitude test in Mathematics was conducted to 1000 students. The mean of the test is 62 and the standard deviation is 8. The scores are recorded to the nearest integers and also approximate a normal distribution. 1. What is the minimum score to belong in the upper 10% of the group? NOTE: Round answer to the nearest integer. 2. Estimate the range of scores that will include the middle 95% of the distribution.
An aptitude test in Mathematics was conducted to 1000 students. The mean of the test is 62 and the standard deviation is 8. The scores are recorded to the nearest integers and also approximate a normal distribution. 1. What is the minimum score to belong in the upper 10% of the group? NOTE: Round answer to the nearest integer. 2. Estimate the range of scores that will include the middle 95% of the distribution.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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An aptitude test in Mathematics was conducted to 1000 students.
The mean of the test is 62 and the standard deviation is 8. The scores are
recorded to the nearest integers and also approximate a normal distribution .
1. What is the minimum score to belong in the upper 10% of the group?
NOTE: Round answer to the nearest integer.
2. Estimate the range of scores that will include the middle 95% of the distribution.
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