April has four different basil plants and four different tomato plants. In how many ways can she arrange the plants in a row if
2 answers:
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Answer:
The standard deviation of the sample mean differences is _5.23_
Step-by-step explanation:
We have a sample of a population A and a sample of a population B.
For the sample of population A, the standard deviation is
The sample size is:
.
For the sample of population B, the standard deviation is
The sample size is:
.
Then the standard deviation for the difference of means has the following form:
Finally
Answer:
x = -30
cos(x - 30) = ½
Step-by-step explanation:
Look at the picture
