find quatile deviation
1,2 ,3,4,5,6,7
marks- 20,28,40,12,30,15,50
Answers
Answered by
0
Explanation:
Age
10
20
30
4
50
60
Frequency
12
7
16
8
18
22
CF
12
19
35
43
61
83
Q
1
= Value of (
4
n+1
)
th
term =21
nd
term=30
Q
3
= Value of 3(
4
n+1
)
th
term =63
th
Term=60
Q.D=
2
Q
3
−Q
1
=
2
60−30
=15
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Answered by
0
Answer:
28
Explanation:
arrange in assending order
12 ,15,20,28,30,40,50
total number of item = 7
quatile deviation = N + 1 upon 2
so.
7+1 upon 2
8/2 =4th item
28
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