MATH SOLVE

2 months ago

Q:
# The mean score on a set of 27 tests is 78. Suppose two more students take the test and score 69 and 66. What is the new mean?

Accepted Solution

A:

Answer:77.3 to the nearest tenth.Step-by-step explanation:The total of the scores on the set of 27 tests= 78*27 = 2106.After Β 2 more had joined the total score is 2106 + 69 + 66= 2241.So the new mean score = 2241 / 29 = 77.3.