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algol [13]
3 years ago
6

Use the frequency table to find the mean number of working TV sets in students' homes. (picture attached)

Mathematics
1 answer:
LenaWriter [7]3 years ago
5 0

The correct option is :  2

<u><em>Explanation</em></u>

For finding the mean number of working TV sets, we need to <u>divide the total number of TV sets by the total frequency</u>.

Now for finding the total number of TV sets, first we will <u>multiply each number of TV sets by it's frequency and then sum up all the results</u>.

So, the total number of TV sets

=(0*1)+(1*8)+(2*9)+(3*4)+(4*3) \\\\  =0+8+18+12+12=50

and total frequency =1+8+9+4+3= 25

Thus, the mean number of working TV sets = \frac{50}{25}=2

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