Question

find the mean of 11/4, 21/2, 51/2, 31/4, 21/2​

Answer 1

Answer:

Here is your answer......

Average value=add all the numbers/no. of numbers......

Average value=(11/4+21/2+51/2+31/4+21/2) / 5

Average value=(18.3046875) / 5

Average value=3.6609375....

Hope it helps.... ☺️☺️☺️

Please mark me as a brainlist....

Answer 2

Answer:

Mean of the given numbers  =  $\frac{57}{5}$

Step-by-step explanation:

Given the numbers,

$\frac{11}{4}, \frac{21}{2}, \frac{51}{2}, \frac{31}{4}, \frac{21}{2}$

To find,

The mean of the given numbers

Recall the formula

Mean = $\frac{Sum \ of \ observations}{Total \ number \ observations}$

Solution:

Here,

Total number of observations = 5

Sum of observations = $\frac{11}{4} + \frac{21}{2}+ \frac{51}{2}+ \frac{31}{4}+ \frac{21}{2}$

LCM = 4

$\frac{11}{4} + \frac{21}{2}+ \frac{51}{2}+ \frac{31}{4}+ \frac{21}{2} =$ $\frac{11+42+102+31+42}{4}$ = $\frac{228}{4}$ = 57

∴Mean = $\frac{Sum \ of \ observations}{Total \ number \ observations}$ = $\frac{57}{5}$

Hence mean of the given numbers  =  $\frac{57}{5}$

#SPJ2