8. In a class six students got 30, 50 80, 70, 20, 5c marks. What is the median score of the class
option are
A.60
B.70
C.80
D.none of these
Answers
Answered by
0
Answer:
Total number of students=n=50
2
n
=
2
50
=25,
As 25<31,
So 30−40 is the median class.
l is the lower limit of median class, so l=30
h is the size of class interval, so h=40−30=10
f is the frequency of median class, so f=16
F is the cumulative frequency of class preceding the median class, so F=15
Median=l+(
f
2
n
−F
)×h
Median=30+(
16
2
50
−15
)×10
Median=30+(
16
10
)×10
Median=30+(
16
100
)
Median=36.25
Hence, the median is=36.25
Answered by
0
Answer:
D. none of these.
Step-by-step explanation:
First we will arrange them in ascending order.
= 20,30, 50, 70, 80
Median means the middle number.
So the middle no. is 50
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