alicia234
01.03.2021 •
Mathematics
Cathy has obtained a sample mean of 0.7 and , but she cannot remember if the sample size was 20 or 25. She accidentally erased the data file. Find the correct sample size.
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Ответ:
If 12 balls were pitched to each of the 9 players at practice, then
12 + 12 + 12 + 12 + 12 + 12 + 12 + 12 + 12 balls were pitched total.
This is also equal to (12)(9) = 108 balls.
108 balls were pitched during practice.
Hope this helps!