What we have to solve is:
we should multiply both sides by10, to get the "x" by itself:
so there are 8 tenths in this number!
we should multiply both sides by10, to get the "x" by itself:
so there are 8 tenths in this number!
6+4*(5-7)^2 need answer with worked out problem
1 answer:
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Answer:
The mean for the combined sample = 6.
Step-by-step explanation:
We have been given that one sample of n = 10 scores has a mean of M = 8.
So the sum of 10 scores for 1st sample will be:
We are also told that second sample of n = 5 scores has a mean of M = 2.
So the sum of 5 scores for 2nd sample will be:
When the both samples are combined, so total points will be: and total scores will be
.
Therefore, the mean for the combined sample will be 6.