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Archive·Problem-Solving and Data Analysis·One-variable data: Distributions and measures of center and spread
hardData Set A and Data Set B
| Data Set A: Value | Frequency | Data Set B: Value | Frequency |
|---|---|---|---|
| c | 12 | c | 30 |
| 2c | 21 | 2c | 21 |
| 3c | 30 | 3c | 12 |
The frequency tables represent data sets A and B, where c is a negative integer constant. The mean of data set A is r and the mean of data set B is q. What is the value of qr?
A
−34
B
1
C
34
D
There is not enough information to determine the value of qr.