Question

what is the mode of
7 9 15 12 9 8 7 6 7 15 4

Answer 1

Answer:Answer

Arranging given marks in ascending order,

4,7,7,9,9,9,10,12,15

Number of observations (n)=9

⇒ Mean=

9

4+7+7+9+9+9+10+12+15

=

9

82

=9.11

⇒ Here, number 9 occurs maximum number of times i.e 3 times.

∴ Mode=9

Number of observation is odd number

∴ Median=(

2

n+1

)

th

obs=(

2

9+1

)

th

obs=5

th

obs

Here, 5

th

obs=9

∴ Median=9

⇒ So, we can see mean measure is maximum and mode,median measures are minimum.