Answer:
standard error of the mean = 1.6960
Step-by-step explanation:
Given -
Mean = 53 minutes
Standard deviation ( s ) = 53.9 minutes
n = 1010
standard error of the mean =
=
=
= 1.6960
Solve for x x-15.99 - 5806 A) -42.07 B) - 74.05 42.07 D) 74.05
1 answer:
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Given:
Jake bought 3 drawing pens for $8.07.
Each pen costs the same amount.
To find:
How much did he spend for one pen?
Solution:
Let x be the cost of each pen. Then
Cost of three pens = 3x
Jake bought 3 drawing pens for $8.07.
Divide both sides by 3.
Therefore, he spend $2.69 for one pen.
