Question

Jeff took 3 Math tests and 2 History tests. All tests range from 0 to 100. Jeff’s mean in Math is 82, and his mean in History is 87. What is Jeff’s mean in all tests?

a) 83

b) 84

c) 85

d) 86

Answer 1

To find Jeff's mean in all tests, add up his total scores in Math and History and divide by the total number of tests.

Step-by-step explanation:

To find Jeff's mean in all tests, we need to calculate the overall average of his scores in Math and History.

Jeff took 3 Math tests and his mean score is 82, which means the total score he achieved in those 3 tests is 3 * 82 = 246.

Jeff also took 2 History tests and his mean score is 87, which means the total score he achieved in those 2 tests is 2 * 87 = 174.

To find the mean in all tests, we add the total scores and divide by the total number of tests: (246 + 174) / (3 + 2) = 84.