Question:
The probability of getting exactly 2 heads in 4 tosses of a fair coin is:
The probability of getting exactly 2 heads in 4 tosses of a fair coin is:
Show Hint
Use combinations for fixed number of outcomes.
Updated On: Jan 5, 2026
- \(3/8\)
- \(1/4\)
- \(3/16\)
- \(1/2\)
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
\[
P = \frac{\binom{4}{2}}{2^4}=\frac{6}{16}=\frac{3}{8}
\]
Was this answer helpful?
0
0
Top Questions on Probability
- From a pack of 52 cards, two cards are drawn at random. What is the probability that both are Kings?
- IPU CET - 2025
- Mathematics
- Probability
- Two dice are tossed. The probability that the total score is a prime number is
- IPU CET - 2025
- Mathematics
- Probability
- There are two children in a family. The probability that both of them are boys is:
- LPUNEST - 2025
- Mathematics
- Probability
- Let a random variable X take values 0, 1, 2, 3 with $ P(X = 0) = P(X = 1) = p, \, P(X = 2) = P(X = 3), \, \text{and} \, F(X^2) = 2F(X). $ Then the value of $ 8p - 1 $ is:
- JEE Main - 2025
- Mathematics
- Probability
- A box contains 10 pens of which 3 are defective. A sample of 2 pens is drawn at random and let $X$ denote the number of defective pens. Then the variance of $X$ is
- JEE Main - 2025
- Mathematics
- Probability
View More Questions
Questions Asked in VITEEE exam
- TUV : VYB :: PRA : ?
- VITEEE - 2025
- Odd one Out
- Find the value of \( x \) in the following equation: \[ \frac{2}{x} + \frac{3}{x + 1} = 1 \]
- VITEEE - 2025
- Algebra
- What is the pH of a solution with a \( \text{H}^+ \) concentration of \( 1 \times 10^{-3} \) mol/L?
- VITEEE - 2025
- Solubility Equilibria Of Sparingly Soluble Salts
- In a code language, 'TIGER' is written as 'JUISF'. How will 'EQUAL' be written in that language?
- VITEEE - 2025
- Odd one Out
- Find the odd one out from the following series: 5, 10, 20, 40, 100, 150, 200
- VITEEE - 2025
- Odd one Out
View More Questions