Question

16. Find the mean of the following data :
Classes 0-20 20-40 40-60
Frequency 20 35 52
60-80
44
80-100
38
100-120
31​

Answer 1

Answer:

60minus 8 is equal to 44 80 -100 is equal to 3800 - 1 is equal to 31 you know just mean is 20 more is 40 and median is 60 brainlist

Answer 2

Step-by-step explanation:

Class frequency xi fixi

0-20 20 10 200

20-40 35 30 1050

40-60 52 50 2600

60-80 44 70 3080

80-100 38 90 3420

100-120 31 110 3410

Total 220 - 13760

xi = £fixi

£fi

= 13760

220

=62.54