- Three-digit numbers are formed
using the digits 0, 2, 4, 6 and 8. A
number is chosen at random out of
these numbers. What is the probability
that the number has the same digits?
(a) (b) (c)^ (d)
- The mean and variance of a binomial
distribution are 8 and 4 respectively.
What is P(X = 1) equal to?
(a) (b) (c) (d)
- In tossing three coins at a time, what
is the probability of getting at most one
head?
(a)^ (b)^ (c)^ (d)^
- Two balls are selected from a box
containing 2 blue and 7 red balls. What
is the probability that at least one ball
is blue?
(a)^ (b)^ (c) (d)
- The probability of guessing a
correct answer is. If the probability
of not guessing the correct answer is^ ,
what is x equal to?
(a) 2 (b) 3 (c) 4 (d) 6
- Three letters are randomly selected
from the 26 capital letters of the
English alphabet. What is the
probability that the letter A will not be
included in the choice?
(a)^ (b)^ (c)^ (d)^
- Two numbers X and Y are
simultaneously drawn from the set {1,
2, 3, 4, 5, 6, 7, 8, 9, 10}. What is the
conditional probability of exactly one
of the two numbers X and Y being even,
given (X + Y)= 15?
(a) 1 (b)^ (c)^ (d)^- Given that P(A)=^ , P(B)=^ and P(A
B)=^ , what is P.^ /?
(a)^ (b)^ (c)^ (d)^ - By Baye’s theorem, which one of
the following probabilities is
calculated?
(a) Prior probability (b) Likelihood
probability (c) Posterior probability
(d) Conditional probability - Given that P(A)= 1/3, P(B)= ¼,
P(A/B)= 1/6, what is P(B/A) equal to?
(a)^ (b)^ (c)^ (d)^ - If A and B are two mutually
exclusive and exhaustive events with
P(B)= 3 P(A), what is the value of P( ̅)?
(a)^ (b)^ (c)^ (d)^ - Two dice are thrown. What is the
probability that the sum of the faces
equals or exceeds 10?
(a) (b)^ (c)^ (d)^ - For a binomial distribution B(n, p),
np= 4 and variance npq= 4/3. What is
the probability P(x ≥ 5) equal to?
(a).^ /
(b)^
(c).
/
(d)^ - When a card is drawn from a well
shuffled pack of cards, what is the
probability of getting a Queen?
(a) (b) (c) (d)