3. Describing Data Numerically
Interpreting Standard Deviation
3. Describing Data Numerically
Interpreting Standard Deviation: Videos & Practice Problems
1
concept
Empirical Rule of Standard Deviation and Range Rule of Thumb
Video duration:
7m2
Problem
A sample of 500 random adult books in a library has an average of 312 pages with a standard deviation of 26 pages. Find the percentage of books in the sample with less than 338 pages using the Empirical Rule of Standard Deviation.
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B
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D
3
Problem
A sample of 500 random adult books in a library has an average of 312 pages with a standard deviation of 26 pages. According to the Empirical Rule of Standard Deviation, find the central range of page lengths containing 95% of the books in the sample.
A
B
C
D
4
Problem
The average birth weight at a hospital is 6.5lbs. with a standard deviation of 1.4lbs. What is the lowest weight which would be considered significantly high?
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B
C
D
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5
example
Empirical Rule of Standard Deviation and Range Rule of Thumb Example 1
Video duration:
5m6
example
Empirical Rule of Standard Deviation and Range Rule of Thumb Example 2
Video duration:
1m
