Math, asked by saijelsohil, 1 month ago

Conduct a survey in your neighboring five houses , collect the information that the electricity consumption in a day . Find the mean , median and mode .

Answers

Answered by jaypurohitok
5

Answer:

Conducted a survey in neighboring houses to collect the information of electricity consumption in a day

Step-by-step explanation:

Survey Done of 50 Families and units consumed daily.

Electricity      Number of            Mean   (mean - 25)/10      

Consumed    Families     CF      Class       d                         df

0 -  10               8               8            5         -2                       -16  

10 - 20             12              20         15         -1                        -12

20 - 30            20             40         25         0                        0

30 - 40            6               46         35          1                        6

40 - 50            4              50          45         2                        8

                      50                                                                 -14

Mean =  25 + 10 x(-14)/50

= 25 -  2.8

= 22.2 Units

Median =   20  +   10 * (25 - 20)/20

= 20 + 2.5

= 22.5 units

Mode =  20   + 10 x ( 20 - 12) / (20 - 12 + 20 - 6)

= 20 + 10 * 8/ 22

= 20 + 3.64

= 23.64  units

Similar questions