question archive A researcher asked 25 customers: " how much would you pay for a television adapter with Internet Access?' Their grouped responses are as follows: Class Interval Frequency 0-99 2 100-199 2 200-249 3 250-299 3 300-349 6 350-399 3 400-499 4 500-999 2 (a) calculate the mean of the dataset (b) calculate the variance of the dataset
A researcher asked 25 customers: " how much would you pay for a television adapter with Internet Access?' Their grouped responses are as follows: Class Interval Frequency 0-99 2 100-199 2 200-249 3 250-299 3 300-349 6 350-399 3 400-499 4 500-999 2 (a) calculate the mean of the dataset (b) calculate the variance of the dataset
Subject:StatisticsPrice:3.87 Bought7
A researcher asked 25 customers: " how much would you pay for a television adapter with Internet Access?' Their grouped responses are as follows: Class Interval Frequency
0-99 2
100-199 2
200-249 3
250-299 3
300-349 6
350-399 3
400-499 4
500-999 2
(a) calculate the mean of the dataset
(b) calculate the variance of the dataset
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