Question

The following frequency distribution gives the monthly consumption of electricity of 68 consumer of a locality find median, mean, and mode of the data and compared them monthly consumption 65-85, 85-105, 105-1
25, 125-145, 145-165, 165-185, 185-205, number of consumer is 4,5,13,20,14,8,4

Answer 1

Answer:

STATISTICS

The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median, mean and mode of the data and compare them.

Monthly consumption (in units)Number of consumers65−85485−1055105−12513125−14520145−16514165−1858185−2054

Step-by-step explanation:

ANSWER

C.I xi fi fixi c.f 65−85 75 4 300 4 85−105 95 5 475 9 105−125 115 13 1495 22 125−145 135 20 2700 42 145−165 155 14 2170 56 165−185 175 8 1400 64 185−205 195 4 780 68   ∑fi=68 ∑fixi=9320  ⇒  Mean=∑fi∑fixi=689320=137.