Two independent samples of size 50 and 50 to test the difference between the population means
1 answer:
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Step-by-step explanation:
You said the other one would be the last haha just kidding I'm glad to help.
16.
First, get rid of that parenthesis.
Now multiply both sides by 2 so that you can isolate k
19.
This is a pretty easy one. If you didn't know, 121/11 is actually 11 :)
Simply multiply by 3 to isolate r :)