Answer:
C) 201
Step-by-step explanation:
Margin of error = critical value × standard error
ME = CV × SE
Assuming n > 30, we can approximate CV with a normal distribution. At P = 99%, CV = 2.576.
SE = σ / √n
SE = 1100 / √n
Therefore:
200 = 2.576 × 1100 / √n
n = 201
30+18 x
the first one
7*1=7 and 7*3=21
y-5+g
five less than y insinuates that it should be y-5
then plus g literally means +g
in the end you have y-5+g
4.243
step by step explanation: