Question

Two coins are tossed 1000 times and the outcomes are recorded as below

Based on this information, the probability for atmost one head is
A. `1/5`
B. `1/4`
C. `4/5`
D. `3/4`

Answer 1

Correct Answer - C
The total number of coins tossed, n(S)=1000
Number of outcomes in which atmost one head, n( E)=550+250=800
`therefore` Probability for atmost one head =`(n( E))/(n(S))=800/1000=4/5`
Hence, the probability for atmost one head is `4/5`.