Question

class interval 0-20,20-40,40-60,60-80,80-100,100-120.frequency 10,35,52,61,38,29.mode​

Answer 1

Answer:

65.625

Step-by-step explanation:

0-20 10

20-40 35

40-60 52

60-80 61

80-100 38

100-120 29

As frequency is maximum for the class 60−80, modal class is 60−80.

Mode=Mode=l+(f1−f0/2f1−f0−f2)×h

where,

l = lower limit of modal class =60

f1 = frequency of modal class =61

f0= frequency of class preceding the modal class =52

f2= frequency of class succeding the modal class =38

h= higher limit - lower limit =80−60=20

mode=60 + {61-52/ 2(61)-52-38}x 20

= 60 + 9/122-90 x 2

=60+9/32*20

=60+9/8*5

=60 + 5.625

=65.625

Answer 2

Answer:

Step-by-step explanation: