Edward A. answered • 04/22/18
Tutor
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Math Tutor, Retired Computer Scientist and Technical Communicator
Ruqayyah, answer two questions:
a) what is his run total so far (ie after 7 games)?
b) what is the run total required after 8 games?
subtract (b) - (a)
Edward A.
No. Remember the formula for “mean”.
Mean = (total runs) / (#of games)
solve that formula for “total runs”.
(total runs) = mean * (#of games)
The problem says his mean runs per game were 42 for 7 games. Since that’s his mean, what was the total for 7 games? 42 * 7= 294
Now , given that he wants a mean of 50, for 8 games, what does his total run count have to be?
then subtract 294 from the result. (Hint, it’s more than a century)
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04/22/18
Ruqayyah Y.
Ok that's how you do it
So I did 400-294 =106
Is that correct now
Thank you !
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04/22/18
Edward A.
You’ve hit for six! You’re welcome.
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04/24/18
Ruqayyah Y.
04/22/18