Math, asked by krishnanandrav7989, 1 year ago

The following frequency distribution table shows the amount of aid given to 50 flood affected families. Find the mean of the amount of aid.
Amount of aid : No. of families
(Thosand rupees)
50-60 : 7
60-70 :13
70-80 : 20
80-90 : 6
90-100 : 4

Answers

Answered by amitnrw
1

Answer:

mean of the amount of aid = 72.4

Step-by-step explanation:

Class                 Mean    u = (Mean - 75)/10     frequency = f       u*f

50 - 60              55                -2                         7                          -14

60 - 70              65                -1                         13                          -13

70 - 80              75                0                         20                          0

80 - 90              85                1                         6                             6

90 -100              95               2                         4                             8

                                               Sum                   50                         -13

Mean = 75   + 10 * (-13/50)

= 75  - 2.6

= 72.4

mean of the amount of aid = 72.4

Answered by nandeshwararyan
5

the mean of the amount of aid is r.s 72,400

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