Question

Arjun scored 74, 85,96,45,60 marks in his maths test. What was the average marks he got?​

Answer 1

Answer:

solution

1) mean= sum of all observations/ total number of observations

total students = 5

value of observations = 74,85,96,45,60.

mean= 74+85+96+45+60- 5

= 355(5)

=54.3

median:

1) arrange data in ascending order

74,85,96,45,60

2) total number of observations = 5

odd: ( n+1 )/ 2

= (5+1) / 2=8 th elements is median

median = 52

mode:

1) arrange data in ascending order

74,85,96,45,60.

2) count the frequency of each observations, the observations having most frequency is the mode

so, 52 appers 3 times, maximum time

mode= 52

Step-by-step explanation:

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