In: Statistics and Probability
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