I am pretty sure the answer to this question is letter A. I remember learning this but i dont remember it clearly.
Answer: 
Step-by-step explanation:
As per given , we have
n = 11

Since population standard deviation is missing, so we use t-test.
Critical t-value for 99% confidence :
[using two-tailed t-value table]
Confidence interval :

Hence, 99% confidence interval for the mean amount of time that students spend in the shower each day.= 
Answer:
<h2>The answer is 10</h2>
Step-by-step explanation:
The formula for finding the combination of two given positive numbers is given by
<h3>

</h3>
Where n and r are positive numbers
From the question we have
5 C 3
<u>Simplify</u>
That's
<h3>

</h3>
We have the final answer as
<h3>10</h3>
Hope this helps you
Answer:
35 is the answer
Step-by-step explanation:
it just is yeyeye