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2 answers:
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Answer:
your answer is 415 in^3
Step-by-step explanation:
ok the equation in finding the volume of a come is
V=
step 1: plugin
3.14 x 6^2 x 11/3
3.14x 36 x 11/3 = (6/3 turns into a 2)
113.04x 11/3= 114. 48, when rounded, it's going to give you 415 in^3
Answer:
C. Decreases the margin of error and hence increases the precision
Step-by-step explanation:
If we select a sample by Simple Random Sampling in a population of “infinite” size (a population so large that we do not know its size exactly), then the margin of error is given by
where
<em>Z = The Z-score corresponding to the confidence level </em>
<em>S = The estimated standard deviation of the population </em>
<em>n = the size of the sample. </em>
As we can see, since n is in the denominator of the fraction and the numerator is kept constant, the larger the sample size the smaller the margin of error, so the correct choice is:
C. Decreases the margin of error and hence increases the precision