Paul uses the expression 4.2 times 12.3 times 14.6 to determine the cost of tiling the floor of a room that measures 12.3 feet b
y 14.6 feet; each square foot of tile costs $4.20. How many decimal places will be in Paul’s final answer?
one
three
five
eight
one
three
five
eight
2 answers:
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Answer:
Step-by-step explanation:
-For a known standard deviation, the sample size for a desired margin of error is calculated using the formula:
Where:
is the standard deviation
is the desired margin of error.
We substitute our given values to calculate the sample size:
Hence, the smallest desired sample size is 23