Answer:
a
Step-by-step explanation:
snbxhchdjkakajiauzucucuhchxhdjdnsnananja
Answer:
√41, or about 6.4 units
Step-by-step explanation:

√41 is about 6.4 units
Answer: x = 9
Step-by-step explanation:
x + 20 = 29
x = 9
9 + 20 = 29
1. The correct answer should be A
2. The answer should be C
3. I think the answer is D
4. The answer should be D
Hope this helps :)
The first-serve percentage of a
tennis player in a match is normally distributed with a standard deviation of
4.3%. If a sample of 15 random matches of
the player is taken, the mean
first-serve percentage is found to be 26.4%. The margin of error of the sample
mean is 83.71%.