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
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