Answer:
Step-by-step explanation:
Represent the number by x. Then:
9x - 4 = 23
Answer:
ok
Step-by-step explanation:
well thats good
Ryan is correct, the mean is about 8.1.
To find the mean, you have to add up all the values, then divide by the total amount.
For Sample A:
60 x 6 + 90 x 7 + 145 x 8 + 150 x 9 + 55 x 10 = 4050
If you add up all the adults, you have 500.
Dividing 4050 by 500 = 8.1
Sample B will produce a very similar result.
Answer:0.08333333....
Step-by-step explanation: