Answer: 3/8
Step-by-step explanation:
1/2 × 3/4
Multiply the numerators: 1 × 3 = 3
Multiply the denominators: 2 × 4 = 8
I hope this is clear, have a great day.
Answer:
B
Step-by-step explanation:
if you round to the nearest hundredth then that would be rounding the second 9 which rounds to 10 which moves to the tenths place value which moves to the ones place value making the answer 4.
Answer:
a) 
b)
Step-by-step explanation:
The sample proportion have the following distribution
Part a
The estimated proportion for this case can be calculated like this:

Part b
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by
and
. And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
Replacing we got: