Answer:
The total amount of money paid for all the tickets in the first two hours is $7350
Step-by-step explanation:
350 x 0.2 = 70
350 x 17.5 = 6125
70 x 17.25 = 1225
6125 + 1225 = 7350
Answer:
idk................ 40?
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
20% is equal to the fraction above
Answer:
5,589,000
Step-by-step explanation:
5.589 x 1,000,000=
5,589,000
Answer: a. 170 b. 752
Step-by-step explanation:
The formula to find the sample size is given by :-
, where p is the prior estimate of population proportion.
= Two-tailed z-value for (significance level).
E= Margin of error .
Given : Margin of error = 0.03
Confidence level = 90%=0.90
By z-value table :
a) The president's political advisors estimated the proportion supporting the current policy to be : p= 0.06.
Required sample size :
∴ Required sample size = 170
b) If no prior estimate of population proportion is given , then we assume
p= 0.5
Required sample size :
∴ Required sample size = 752