Question

ans 13,14,17 and 19 question....
solve in step by step..​

Answer 1

median is the middle most score so you have to first arrange them in ascending order and write the middle most score of the given set of score

if there is even number of scores then average of the middle 2 numbers

Answer 2

13.

ascending order:

23,25,27,28,31,36,36,38,40

n=9 (odd)

median = ((n+1)÷2)th obs.

= (10/2)th obs.

= 5th obs.

= 31

14.

let the rate be r.

A= 1040 Rs.

t= 2 years

SI = 40 Rs.

A=SI +P

1040= 40 + P

P= 1000 Rs.

SI =( P×R×T)÷100

40 = (1000×r × 2)÷ 100

40 =20r

r= 2%p.a.