stats assignment
hsj
edb_601__stats_assign_spring_20161.docEDB 601 STATS ASSIGNMENT
88, 100, 93, 57, 89, 88, 86, 92, 86, 100, 68, 83, 86, 87, 100, 72, 84, 91, 92, 100, 69
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Scores |
Frequency (f ) |
Xf |
Cumulative Frequency |
__ (X – X)2 |
__ (X – X )2 f |
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Find the mean, median, variance and standard deviation.
Mean: ___________ Median: _____________
Variance: __ _______ Standard Deviation: _______________
Actual scores within one standard deviation: ___________________
Actual scores within two standard deviations: ______________________
What is the shape of the distribution? ______________________________
Why? __________________________________________________________
