Given:
Sample proportion = 85% = 0.85.
Confidence level (CL) = 90%.
Confidence interval (CI)

We want the confidence interval to be 5% or 0.05. Therefore

Because this number is less than 1, a default sample size of 30 (for the normal distribution) is recommended.
Answer: 30
Answer:

Step-by-step explanation:
Let
x-------> the length side of the rectangle
y------> the width side of the rectangle
we know that
---> equation A
---> equation B (given problem)
substitute equation B in equation A

so
the coordinate of the top-left vertex of the rectangle is equal to

Answer:
280
Step-by-step explanation:
50% is half, so to get the total, multiply 140*2 which is 280.
Answer:
it would be 12
Step-by-step explanation:
Answer:2,3 hope it help you
Step-by-step explanation: