alleryStart learning →In 3 trials with success probability 0.3, find P(exactly 2 successes).
A0.063
B0.027
C0.189
D0.441
Answer & Solution
Correct answer: C. 0.189
P = 3C2 (0.3)^2 (0.7) = 3 x 0.09 x 0.7 = 0.189.
Keep practising Binomial Distribution
Browse all Binomial Distribution questions for MHT-CET, or explore more Mathematics topics.
Related questions
A binomial variable has mean 10 and p = 0.4. What is its variance?Which describes a Bernoulli trial?The number of trials in a binomial experiment must be what?Binomial variance follows from which fact about Bernoulli parts?If np is an integer for B(n, p), which statements about mean, median, mode hold?If X is B(n, p) and Y is B(m, p), both independent, X + Y follows what?When does B(n, p) approach a Poisson distribution?Sampling without replacement from a small population gives which distribution?