Atives ao ar trials) Asking 20 people how old they are. Coor to our coone)
Ill. Dwing 5 cards from a deck for a poker hand. se
without Yopacaran
So cat Jadeneteat)
18. The mean and variance of binomial distribution are 4 and 4/3 respectively, plX 2 1]
a
with
the
pdf
of
19. Parameters of Binomial Distribution are n=5 and p=0.45, P[0<x<3] =
20. Suppose
random variable Х is continuous
2x
0<x<1
f(x) = 1
0, otherwise
a. Check f(x) is a pdf? (1 pts)
b. Find p (x >0.5)? (2 pts)
c. Calculate E(x) and Var(x)? (1 pt)
kereise 2
1. A secretary makes 2 errors per page on the average. What is the probability that on the
next page she makes
a) 4 or more errors?​