Simple Maths but I'm stuck !! :O lol
Hi !!
Finding the mean for a normal frequency distribution table is easy.
I know it's just the SUM(midpoint x f) divided by SUM(f).
But how do you do it when we're given an open ended class boundary? like in this case '80 and over' ;O
Help guys !! :s
Finding the mean for a normal frequency distribution table is easy.
I know it's just the SUM(midpoint x f) divided by SUM(f).
But how do you do it when we're given an open ended class boundary? like in this case '80 and over' ;O
Help guys !! :s
Original post by vxq1
Hi !!
Finding the mean for a normal frequency distribution table is easy.
I know it's just the SUM(midpoint x f) divided by SUM(f).
But how do you do it when we're given an open ended class boundary? like in this case '80 and over' ;O
Help guys !! :s
Finding the mean for a normal frequency distribution table is easy.
I know it's just the SUM(midpoint x f) divided by SUM(f).
But how do you do it when we're given an open ended class boundary? like in this case '80 and over' ;O
Help guys !! :s
You have to assume 89 as upper limit
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