A distribution of values is normal with a mean of 90 and a standard deviation of 5. Find the interval containing the middle-most 98% of scores:

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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## Understanding Normal Distribution and Interval Notation

A distribution of values is normal with a mean of 90 and a standard deviation of 5.

**Question:**
Find the interval containing the middle-most 98% of scores.

(There is a blank rectangular box for typing the answer)

**Instructions:**
1. Enter your answer using interval notation. Example: [2.1, 5.6]
2. Your numbers should be accurate to 1 decimal places.
3. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Transcribed Image Text:## Understanding Normal Distribution and Interval Notation A distribution of values is normal with a mean of 90 and a standard deviation of 5. **Question:** Find the interval containing the middle-most 98% of scores. (There is a blank rectangular box for typing the answer) **Instructions:** 1. Enter your answer using interval notation. Example: [2.1, 5.6] 2. Your numbers should be accurate to 1 decimal places. 3. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
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