if mean of 7 observation in ascending order 42,48,x+15,x+17,x+20,58,60 is 53 find x and hence find median
Answers
Answered by
3
hìiiiiiiiiiii hiiiiiiii hooioooo
Anonymous:
hi gagan ?
u blocked
thank u
Answered by
37
mean = sum of all observation / total no. of observation
53 = 42+48+x+15+x+17+x+20+58+60 / 7
53*7 = 260+3x
371-260 = 3x
111/3 = x
x = 37
42,48,52,54,57,58,60
median = (n+1 /2)th observation
= (7+1 /2)th
= 4th term
therefore median is 54
if it helped you please mark brainliest
53 = 42+48+x+15+x+17+x+20+58+60 / 7
53*7 = 260+3x
371-260 = 3x
111/3 = x
x = 37
42,48,52,54,57,58,60
median = (n+1 /2)th observation
= (7+1 /2)th
= 4th term
therefore median is 54
if it helped you please mark brainliest
Similar questions