Question

Probability question

Answer 1

Probabilities that Rajesh passes in Physics, Math and Chemistry are \(p, m\) and \(c\) respectively. Of these subjects, Rajesh has \(75\%\) chance of passing in at least one,\(50\%\) chance of passing in at least two and \(40\%\) chance of passing in exactly two. Find which of the following is true:

\( \large {(a) p+m+c=\frac{19}{20} \\ \\
(b) p+m+c=\frac{27}{20} \\ \\
(c) pmc = \frac{1}{20} \\ \\
(d) pmc = \frac{1}{8}}\)

Answer 2

not the best stats person. however,