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For some data: The mean is equal to 13142 and The standard deviation is equal 500. Then, 68 percent of the date are between. a. None of answers is correct O b. 13142 and 500 Oc. O and 13142 d. 13642 and 12642

For some data: The mean is equal to 13142 and The standard deviation is equal 500. Then, 68 percent of the date are between. a. None of answers is correct O b. 13142 and 500 Oc. O and 13142 d. 13642 and 12642

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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For some data: The mean is equal to 13142 and The standard deviation is equal 500. Then, 68 percent of the date are between. a. None of answers is correct O b. 13142 and 500 Oc. O and 13142 d. 13642 and 12642
Transcribed Image Text:For some data: The mean is equal to 13142 and The standard deviation is equal 500. Then, 68 percent of the date are between. a. None of answers is correct O b. 13142 and 500 Oc. O and 13142 d. 13642 and 12642
Expert Solution
Step 1

We can use 68-95-99.7% rule to find out the range that we need.

The first part of the empirical rule states that 68% of the data values will fall within 1 standard deviation of the mean.

To calculate "within 1 standard deviation," we need to subtract 1 standard deviation from the mean, then add 1 standard deviation to the mean. That will give us the range for 68% of the data values.

i.e

13142-500=12642

13142+500=13642

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