CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Mean for the frequency distribution is 1.46 then choose the correct options -

No. of Accidents
0
1
2
3
4
5
Total
Frequency (f)
46
f1
f2
25
10
5
200

A
f1=76
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
f2=45
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
f1=70
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
f2=38
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct options are
A f1=76
D f2=38
The calculation are as under :
xi
fi
fixi
0
46
0
1
f1
f1
2
f2
2f2
3
25
75
4
10
40
5
5
25

N=f1=86+f1+f2;fixi=140+f12f2
It isgiven that N = 200.
Therefore, 86+f1+f2=200f1+f2=114 ..... (1)
Now, ¯x=1.461.46=fixiN
1.46=140+f1+2f2200
292=140+f1+2f2f1+2f2=152 ...... (2)
Solving (1) and (2), we get f1=76 and f2=38

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Mean
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon