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In: Statistics and Probability

Water Cost (in$) Number of house (fi) 20 -<40 16 40 -< 60 9 60 -<...

Water Cost (in$)

Number of house (fi)

20 -<40

16

40 -< 60

9

60 -< 80

12

80 - < 100

10

Total

47

1.Calculate the mean cost of water.

2.Calculate the variance.

3.Calculate the mode

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