I do i posted a lot of math do the one that i posted a long time ago
Find the mean of the first four test scores first.
(Add all numbers in set and divide by how many numbers there are)
81 + 87 + 71 + 89 = 328 / 4 = 82
Then, find the mean with the 85 added as the fifth term.
81 + 87 + 71 + 89 + 85 = 413 / 5 = 82.6
The impact that the 85 had on the mean test score was that the mean/average increased by 0.6.
Answer:
0
Step-by-step explanation:
edg 2020
The answer is D. 4x7+5=33 8x7+5=61. Hope it helps
Answer:
44, 46, and 48
Step-by-step explanation:
add them and you should get 138.