Question

Find the mean,median and mode of the following:. a) 3,4,1,5,6,4,2,4 b)20,30,40,40,10,16,40,30​

Answer 1

mean = sum of observations

           number of observations

median = $(\frac{n+1}{2} )^t^h$    or $(\frac{n}{2} )^t^h$

mode =most  frequent event

a)3,4,1,5,6,4,2,4

1 , 2 , 3 , 4 , 4 , 4 , 5 , 6

mean = $\frac{1+2+3+4+4+4+5+6}{8} = 3.625$

median = $\frac{8}{2} = 4th \ observation$ = $4$

mode = 4

b)20,30,40,40,10,16,40,30​

10 , 16 , 20 , 30 , 30 , 40 , 40 , 40

mean = $\frac{10+16+20+30+30+40+40+40}{8} = 28.5$

median = $\frac{8}{2} = 4th \ observation$ = 30

mode = 40

hope it helps !!