Question

obtain the expression for the standard error of sampling distribution: (i) sample mean, (ii) sample variance (s^2), in random sampling from a large population. Assume that n,the sample size, is large?

Answer 1

Step-by-step explanation:

If x

2

−2px+8p−15=0 has equal roots, then p equals

EASY

Help best friend

Study later

ANSWER

let the root be α then

2α=2P⇒α=P.....(1)

and

α

2

=8P−15=8α−15

α

2

=3α−5α+15=0

⇒(α−3)(α−5)=0

α=3 or 5⇒P=3 or 5

Answer by....️