a nursery owners buy 7 panes of glass to fix some damage to her green panes. The 7 panes cost 16.45. Unfortunately, she breaks 3
2 answers:
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Answer:
a) The third quartile Q₃ = 56.45
b) Variance
Step-by-step explanation:
Given that :
= 30.8
Median = 48.5
Mean = 42
a) The mean is less than median; thus the expression showing the coefficient of skewness is given by the formula :
Divide both sides by 1.38
b) The objective here is to determine the approximate value of the variance;
Using the relation
Variance =