Answer:
Exact Form:
149
/5
Decimal Form:
29.8
Mixed Number Form:
29 4
/5
Step-by-step explanation:
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Answer:
the 3rd one
Step-by-step explanation:
I just think
120/4 is 30
You'll be able to put 4 nails thirty times.
You put them every 6 feet
So, you have 5 feet before running out.
Answer:
8 is the standard error of mean.
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 225
Standard deviation = 120
We have to find the standard error of he mean.
Standard error is the ration of standard deviation to square root of sample size.
Formula:
Thus, 8 is the standard error of mean.