Answer:
42
Explanation:
When finding the area of a triangle, the first step is to multiply the length times the width, in this case- 7 and 12
. 7 × 12 equals 84. The next step in finding the area would be to cut the product in half, in this case- the product is 84, so you would do 84 ÷ 2. And 84 ÷ 2 is 42, hence the answer would be 42
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Answer:
0.025 is the standard error of mean.
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 100
Sample mean = 13 psi
Population standard deviation = 0.25 psi
We have to find the standard error of the mean.
Formula:
Standard error =
0.025 is the standard error of mean.