Answer:
19% done
81% left
Step-by-step explanation:
95/500=19
100-19=81
Y=2
EXPLANATION:
2(-10)-9y=-38
-20-9y=-38
-9y=-18
y=2
Answer:
$24.84
Step-by-step explanation:
i did the work lol
give brainliest please
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