It is given that student marked the answer correctly, the probability that he guesses is Option 1: 3/5 Option 2: 2/15 Option 3: 11/15 Option 4: 2/11

The answer is '2/11'. View full solution:

CUET Mathematics - It is given that student marked the answer correctly, the probability that he guesses is | PYQs + Solutions

CUET Mathematics 2022 16 July Shift 2

Algebra

Medium

$\frac{3}{5}$

$\frac{2}{15}$

$\frac{11}{15}$

$\frac{2}{11}$

✅ Correct Option: 4

Related questions:

17 Aug Shift 2

It is given that only 0.1% of a large population have COVID infection. In this population, the reliability of COVID RTPCR-test is specified as follows :

For persons having COVID, 90% of the test detects the disease but 10% goes undetected. For persons not having COVID, 99% of the test is judged COVID negative but 1% are diagnosed as COVID positive.

Based on the above informations, answer the question :

The probability of the person to be tested as COVID positive, given that he is actually not having COVID is :

2 June Shift 1

A and B are two independent events. The probability that both events A and B occur is $\frac{1}{6}$ and the probability that neither of them occur is $\frac{1}{3}$ . If P(A) = x, P(B) = y then the value of x+y is.

3 June Shift 2

A random variable X has the following probability distribution:

X	0	1	2
P(X)	1/4	1/2	1/4

then, which of the following is correct?

CUET Mathematics 2022 16 July Shift 2 PYQs

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