Using the data below, tind the: 1. (a) mean (b) median (c) mode (4) QI (e) Q3 () D7 (g) PI0 (h) variance standard deviation @ coefficient of variation Frequency 71-80 61-70 13 51 - 60 10 41- 50 31 - 40 12 10 21-30 11-20 1-10

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Using the data below, find the:
I. (a) mean (b) median (c) mode (4) QI (e) Q3
() D7 g) P10
(h) variance ) standard deviation Q coefficient
of variation
X
Frequency
71- 80
61- 70
13
51 - 60
10
41- 50
31 - 40
12
10
21 -30
11-20
6.
1-10
3
Transcribed Image Text:Using the data below, find the: I. (a) mean (b) median (c) mode (4) QI (e) Q3 () D7 g) P10 (h) variance ) standard deviation Q coefficient of variation X Frequency 71- 80 61- 70 13 51 - 60 10 41- 50 31 - 40 12 10 21 -30 11-20 6. 1-10 3
II. (a) Using 0.5 and 80.5 as whiskers, and the results
you found in part I, make a box and whiskers plot
for the above data set.
(b) Using only the information in your box and
whiskers plot, describe the skewness of the data. Is
the distribution normally distributed, or skewed? If
it is skewed, what kind of skewness does it have?
(c)
Confirm your answer using the Pearson 2
Skewness Coefficient.
Transcribed Image Text:II. (a) Using 0.5 and 80.5 as whiskers, and the results you found in part I, make a box and whiskers plot for the above data set. (b) Using only the information in your box and whiskers plot, describe the skewness of the data. Is the distribution normally distributed, or skewed? If it is skewed, what kind of skewness does it have? (c) Confirm your answer using the Pearson 2 Skewness Coefficient.
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