$30.55
-----------------------------------------
4.70
x 6.5
_____
2350
28200
_______
30.550
38 rounds to 40.
29 rounds to 30.
40 x 30 = 120.
Answer:
A
Step-by-step explanation:
let's try A. 3(3)+2=9+2=11
11=11
So A is right
210 take 126/3 = 42 take 42x5 = 210
To obtain an estimate of a parameter of a population, we use confidence intervals.
Confidence intervals:
The larger the sample size, the closest the parameter estimate is to the value of the population, as the margin of error of confidence intervals is inversely proportional to the sample size, that is, a greater sample leads to a smaller margin of error.
Thus, you should select the highest sample size in the options.
For more on confidence interval/margin of error, you can check brainly.com/question/22718960
