The following distribution shows the prices of books at a college. Class Frequency(
Question: The following distribution shows the prices of books at a college.
Class Frequency(Fi) Class Mark(Xi) FiXi
10-20 10 15 150
20-30 15 25 375
30-40 15 35 525
40-50 20 45 900
sum = 60 = n sum = 1950
Find:
Mean
Variance (assume it is a population)
Price: $2.99
Answer: The solution consists of 2 pages
Solution Format: Word Document
Solution Format: Word Document
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