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1. A class had a quiz in Statistics. The scores of the students has a mean of 87 and standard deviation of 3. What proportion of the class. are: 1. Between 85 and 90? 2. Higher than 95? 3. Below 80? II. Find the scores that are included in the following percentiles: 1. P50 2. P90 3. P10 III. Solve. The scores of the students who took an exam in Statistics is normally distributed with a mean of 80 and standard deviation of 4. The teacher would like to give remedial classes to the lowest 10 percent of the students. What is the cut off score for the students who are going to have remedial class?

1. A class had a quiz in Statistics. The scores of the students has a mean of 87 and standard deviation of 3. What proportion of the class. are: 1. Between 85 and 90? 2. Higher than 95? 3. Below 80? II. Find the scores that are included in the following percentiles: 1. P50 2. P90 3. P10 III. Solve. The scores of the students who took an exam in Statistics is normally distributed with a mean of 80 and standard deviation of 4. The teacher would like to give remedial classes to the lowest 10 percent of the students. What is the cut off score for the students who are going to have remedial class?

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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1. A class had a quiz in Statistics. The scores of the students has a mean of 87 and standard deviation of 3. What proportion of the class are: 1. Between 85 and 90? 2. Higher than 95? 3. Below 80? II. Find the scores that are included in the following percentiles: 1. P50 2. P90 3. P10 III. Solve. The scores of the students who took an exam in Statistics is normally distributed with a mean of 80 and standard deviation of 4. The teacher would like to give remedial classes to the lowest 10 percent of the students. What is the cut off score for the students who are going to have remedial class?
Transcribed Image Text:1. A class had a quiz in Statistics. The scores of the students has a mean of 87 and standard deviation of 3. What proportion of the class are: 1. Between 85 and 90? 2. Higher than 95? 3. Below 80? II. Find the scores that are included in the following percentiles: 1. P50 2. P90 3. P10 III. Solve. The scores of the students who took an exam in Statistics is normally distributed with a mean of 80 and standard deviation of 4. The teacher would like to give remedial classes to the lowest 10 percent of the students. What is the cut off score for the students who are going to have remedial class?
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