TS ICET 23 May 2018 Shift 2 Paper

Question : 149 of 200

Marks: +1, -0

When 4 un-biased corns are tossed, the probability of getting at least 2 heads is

Solution:

Probability of (atleast 2 heads)
= 1 – Probability of less than 2 heads

=1-\;{4 c _{0}+4 c _{1}}/{2^{4}}=1-\;{5}/{16}=\;{11}/{16}

Go to Question:

Prev Question

Next Question