CUET CUET Mathematics 2024 - A coin is tossed K times. If the probability of getting 3 heads is equal to the probability of getting 7 heads, then the probability of getting 8 tails is : | PYQs + Solutions | AfterBoards
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CUET Mathematics 2024

Algebra
>
Probability

Medium

A coin is tossed K times. If the probability of getting 33 heads is equal to the probability of getting 77 heads, then the probability of getting 88 tails is :

Correct Option: 3
.

Related questions:

CUET Mathematics 2024

If the random variable X X has the following distribution:
X X 0 1 2 otherwise
P(X) P(X) k k 2k 2k 3k 3k 0 0
Match List-I with List-II:
List-I List-II
(A) k k (I) 56 \frac{5}{6}
(B) P(X<2) P(X < 2) (II) 43 \frac{4}{3}
(C) E(X) E(X) (III) 12 \frac{1}{2}
(D) P(1≤X≤2) P(1 \leq X \leq 2) (IV) 16 \frac{1}{6}

CUET Mathematics 2024

A die is rolled thrice. What is the probability of getting a number greater than 44 in the first and the second throw of dice and a number less than 44 in the third throw ?

CUET Mathematics 2024

Two dice are thrown simultaneously. If X denotes the number of fours, then the expectation of X will be :

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