Using the Mean and Frequency Table To Find Missing Values
- Thread starter etor
- Start date
Harry_the_cat
Elite Member
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- Mar 16, 2016
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Put a and b in the missing spaces.
Add up the frequency column. What does this equal?
Write an expression for the mean. What does this equal.
This will give you 2 equations both involving a and b. Solve simultaneously.
Add up the frequency column. What does this equal?
Write an expression for the mean. What does this equal.
This will give you 2 equations both involving a and b. Solve simultaneously.
Dr.Peterson
Elite Member
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- Nov 12, 2017
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- 16,088
It's not clear what aspect of this is confusing you, but one possibility is that the "score" means the number of emails received on a day, and the "frequency" is the number of days on which a given number of emails was received. Both are somewhat easy to misinterpret.