Question

find mean,if £f1x1=4608 and N =48​

Answer 1

If ∑f  

i

​  

=11,∑f  

i

​  

x  

i

​  

=2p+52 and the mean is 6, find the value of p.

Answer

As we know that mean of the data is given as-

x

ˉ

=  

∑f  

i

​  

 

∑f  

i

​  

x  

i

​  

 

​  

 

Given that:-

x

ˉ

=6

∑f  

i

​  

x  

i

​  

=2p+52

∑f  

i

​  

=11

Therefore,

11

2p+52

​  

=6

⇒2p+52=66

⇒2p=66−52

⇒p=  

2

14

​  

=7

Hence the value of p is 7.

Hence the correct answer is 7.

Answer 2

Answer:

I not understand the question