11. Given the following frequency table data, compute the variance and standard deviation of the data using the grouped data formula. Class Sums 1 2 3 4 5 6 Class Boundaries 10.5-15.5 15.5-20.5 20.5-25.5 25.5-30.5 30.5-35.5 35.5-40.5 fi 1 Normality can not be tested for frequency tables. Population is Normal. We need larger significance level (a). Population is not Normal. 2 6 8 3 3 Σ fi Is the given population normally distributed? Use a = 01. xmi fixmi Efiami x'mi fi• x²mi Σ fi• xmi
11. Given the following frequency table data, compute the variance and standard deviation of the data using the grouped data formula. Class Sums 1 2 3 4 5 6 Class Boundaries 10.5-15.5 15.5-20.5 20.5-25.5 25.5-30.5 30.5-35.5 35.5-40.5 fi 1 Normality can not be tested for frequency tables. Population is Normal. We need larger significance level (a). Population is not Normal. 2 6 8 3 3 Σ fi Is the given population normally distributed? Use a = 01. xmi fixmi Efiami x'mi fi• x²mi Σ fi• xmi
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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Transcribed Image Text:11. Given the following frequency table data, compute the variance and standard deviation of the data using the grouped data formula.
Class
Sums
1
2
3
4
5
6
Class Boundaries
10.5-15.5
15.5-20.5
20.5-25.5
25.5-30.5
30.5-35.5
35.5-40.5
fi
1
Normality can not be tested for frequency tables.
Population is Normal.
We need larger significance level (a).
Population is not Normal.
2
6
8
3
w w
3
Σ fi
Is the given population normally distributed? Use a = 01.
Xmi
fi.xmi
Efiami
x²mi
fi . xmi
2
Σfixmi
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