Question:
A bag contains 3 red balls and 5 black balls. If a ball is drawn at random from the bag, then the probability of getting a red ball is
A bag contains 3 red balls and 5 black balls. If a ball is drawn at random from the bag, then the probability of getting a red ball is
Updated On: May 24, 2024
- \(\frac{1}{2}\)
- \(\frac{3}{4}\)
- \(\frac{5}{8}\)
- \(\frac{3}{8}\)
Hide Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
The correct option is (D): \(\frac{3}{8}\)
Was this answer helpful?
0
0
Top Questions on Probability
- The probability of a boy winning a game is \( \frac{2}{3} \). Let \( n \) denote the least number of times he must play the game so that the probability of winning the game at least once is more than 90%, and \( X \) denotes that number of times he wins the game. Hence \( n \), mean, variance, and standard deviation of the random variable \( X \) are respectively:
(A) 3
(B) \( \frac{2}{3} \)
(C) 2
(D) 0.81
Choose the correct answer from the options given below:- CUET (UG) - 2024
- Mathematics
- Probability
- A coin is tossed twice. Then Match List-I with List-II:
List-I List-II (Adverbs) (A) P(exactly 2 heads) (I) \(\frac{1}{4}\) (B) P(at least 1 head) (II) \(1\) (C) P(at most 2 heads) (III) \(\frac{3}{4}\) (D) P(exactly 1 head) (IV) \(\frac{1}{2}\)
Choose the correct answer from the options given below :- CUET (UG) - 2024
- Mathematics
- Probability
- A pair of dice is rolled . If the two numbers appearing on them are different the probability that
Match List-I with List-II
LIST-I(EVENT) LIST-II(PROBABILITY) (A) The sum of the number is greater than 11 (i) 0 (B) The sum of the number is 4 or less (ii) 1/15 (C) The sum of the number is 4 (iii) 2/15 (D) The sum of the number is 4 (iv) 3/15 Choose the correct answer from the option given below
- CUET (UG) - 2024
- Mathematics
- Probability
- In a series of 4 trials, the probability of getting two successes is equal to the probability of getting three successes. The probability of getting at least one success is:
- CUET (UG) - 2024
- Mathematics
- Probability
- Two events \(X\) and \(Y\) are such that \(P(X) = \frac{1}{3}\), \(P(Y) = n\), and the probability of occurrence of at least one event is 0.8. If the events are independent, then the value of \(n\) is:
- CUET (UG) - 2024
- Mathematics
- Probability
View More Questions
Questions Asked in AP POLYCET exam
- If the centroid of a triangle formed by the points \((a,b), (b, c)\) and \((c,a)\) is at the origin, then \(a^3+b^3+c^3 =\)
- AP POLYCET - 2024
- Triangles
- If a sin 45°= b cosec 30°, then the value of \(\frac {a^4}{b^4}\) is
- AP POLYCET - 2024
- Trigonometry
- The ratio of the sum and product of the roots of the quadratic equation \(7x^2-12x+18=0\) is
- AP POLYCET - 2024
- Quadratic Equations
- If the slope of the line joining the points (4,2) and (3,-k) is -2, then the value of k is
- AP POLYCET - 2024
- Slope of a line
- If 25 cm each is the object and image distances due to convex lens, then its focal length is
- AP POLYCET - 2024
- Light - Reflection and Refraction
View More Questions