Question

4. Find the mode and the mean for the set of data below.
Number of fiction books read by 28 Grade VII pupils:
4, 6, 1, 7, 3, 9, 5, 7, 8, 5, 4, 6, 10, 6, 9, 5, 6, 6, 8, 6, 8, 5, 10, 7, 2, 5, 3, 7.

Answer 1

Answer:

To find the mode of the data ,first we have to arrange them in ascending order or descending order

let the observations be in ascending order ,then the arrangement will be-

1,2,3,3,4,4,5,5,5,5,5,6,6,6,6,6,6,7,7,7,7,8,8,8,9,9,10,10

hence there are more number of 6's then the mode of the data is 6.

we know that ,mean=sum of the observations ÷ number of observations

sum of the observations= 159

number of observations= 28

so mean=159/28=5.678...

Answer 2

Answer:

mode = 1,2,3,3,4,4,5,5,5,5,5,6,6,6,6,6,6,7,7,7,7,8,8,8,9,9,10,10.

=6

mean= 1+2+3+3+4+4+5+5+5+5+5+6+6+6+6+6+6+7+7+7+7+8+8+8+9+9+10+10/28

=168/28

=6