Question

find the mean , mod and median of the data 2,3,7,8,11,15,19,21,2,3,7,15,19​

Answer 1

Answer:

Mean, Mode and Median

Step-by-step explanation:

Arranging the given numbers in ascending order:

2,3,3,7,7,8,11,15,15,19,21

Number of observations (n) = 12

→ Mean :

$\frac{2 + 2 + 3 + 3 + 7 + 7 + 8 + 11 + 15 + 15 + 19 + 21}{12}$

$= \frac{113}{12}$

$= 9.4166666666666$

→ Mode :

→ Here numbers 2,3,7, 15, 19 occurs the maximum time, so

Mode = 2,3,7, 15, 19

Median :

Add up the middle numbers, which are

$7 + 8 = 15$

now divide it by two

$15 \div 2 = 7.5$

Mode = 7.5