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2 Questions returned
No. & Date AskedQuestion
# 926 :: 1/30/12
Question 926 has been Answered
A survey of random sample of people leaving an amusement park showed an average expenditure number 10.30k for the evening, the average of expenditure . . .

weighted mean

# 925 :: 1/30/12
Question 925 has been Answered
3 section of a statistics class containing 28,32 and 35 students averaged 83,80 and 76 respectively on same final exam. what 's the combined populatio. . .

weighted mean