During a certain 7-year period, the consumer price index (CPI) increased by 60%, but during the next 7-year period, it increased by only 50%. Which of
these conditions must have existed during the second 7-year period?
A. Stagnation
B. Inflation
C. Deflation
D. Conflation

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.

square root of 36/6 = 2.449489743

square root of 16/6 = 1.632993162

square root of 6 = 2.449489743

the answer is square root of 16/6 because the square root of 36/6 is the same answer as square root of 6 = 2.449489743