Homework Answers
a.
Lie above z =0.3
From the table : At z = 0.3 Z score is 11.79%
This score corresponds 0 < z < 0.3
above z =0.3 percentage of data items = (50-11.79)% = 38.21%
b.
Lie below z = -0.9
From the table : At z = -0.9 Z score is 31.59%
This score corresponds -0.9< z < 0
below z = -0.9 percentage of data items= (50-31.59)% = 18.41%
c.
Lie between z =-2 and z= -0.6
Percentage of data items = (47.72 - 22.57)% = 25.15%
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