engineering recuitment ISRO Scientist Civil Mock Test Engineering Mathematics Probability and Statistics
The probability that a teacher will give an unannounced test during any class is 1/5. If a student is absent twice, then probability that misses atleast one test is
1
\(\frac{2}{3}\)
2
\(\frac{4}{5}\)
3
\(\frac{7}{{25}}\)
4
\(\frac{9}{{25}}\)