Question

28-32 32-36 36-40 15. Compute the mode for the following frequency distribution: Size of items: 0-4 4-8 8-12 12-16 16-20 20-24 24-28 0 6 3 1 5 10 7 17 12 9 Frequency: (1 Point) a. 32.66 C 5. 28.43 c. 24.87 d. 31.65 X If k is added to each observation, then the new mean is:​

Answer 1

Step-by-step explanation:

Here, the maximum frequency is 17 and the corresponding class is 12−16. So, 12−16 is the modal class.

We have,

l=12,h=4,f=17,f

1

=9 and f

2

=12

∴Mode=l+

2f−f

1

−f

2

f−f

1

×h

⇒Mode=12+

34−9−12

17−9

×4

⇒Mode=12+

13

8

×4=12+

13

32

=12+2.4=14.4