Question

210 IX-CLASS MATHEMATICS
of central tendere
ean, mode and med
e values, the measur
is multiplied by 2,6
After observing the table, we see that
When added : Since all values are shifted by the same amount, the measures of
are all shifted by the same amount. If 3 is added to each data value, the mean.m
will also increase by 3.
When multiplied : Since all values are affected by the same multiplicative values
of central tendency will also be affected similarly. If each observation is multi
mean, mode and me lian will also be multiplied by 2.
EXERCISE - 9.2
1. Weights of parce's in a transport office are given below.
Weight (kg) 50
No of parcels 25
65
34
75
38
90
40
110
47
120
16
Find the mean weight of the parcels.
2 Number of families in a village in correspondence with the number of children are​

Answer 1

Answer:

50/25

=2

MAEK AS BRANLY ANSWER