If four marbles are picked at random, what is the probability that one is green, two are blue and one is red ?
A). 24/455
B). 13/35
C). 11/15
D). 7/91
24/455
NA
Join Telegram Group
1. What if the probability of getting a king or a queen in a single drawn from a pack of 52 cards ?
2. A box contains 5 black balls, 4 yellow balls and 11 pink balls. A ball is drawn at random from the box. Find the probability that the ball drawn is neither black nor pink.
3. A bag contains 2 red, 3 green and 2 blue balls.Two balls are drawn at random.What is the probability that none of the drawn ball is blue?
4. The letters of the word ‘PROBABILITY’ are arranged in all possible ways. The chance that two B’s and also two I’s occur together is
5. In hypergeometric distribution, the trials are
6. A biased coin shows heads with a probability of 0.7 in a throw. What is the probability of different outcomes in two throws of coin?
7. A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?
8. If three unbiased coins are tossed simultaneously, then the probability of exactly two heads, is
9. A fair coin is tossed 10 times. What is the probability that only the first two tosses will yield tails?
10. A bag contains 5 blue and 4 black balls. Three balls are drawn at random. What is the probability that 2 are blue and 1 is black ?
History
Geography
Political Science
Chemistry
Biology
Physics
Enviornmental Science
Economics
Books & Authors
Computer Basics
Financial Awareness
International Organisations
Famous Personalities
Spoting Errors
Sentence Improvement
Fill In the Blanks
Antonyms
Synonyms
Spellings
Idioms and Phrases
Voice (Active/ Passive)
Naration (Direct/ Indirect)
Reading Comprehension
Cloze Test
Mensuration
Simplification
Profit & Loss
Trigonometry
Percentage
Ratio & Proportion
Time & Work
Average
Simple & Compound Interest
Number System
Discount
Time & Distance
Surds and Indices
Mixture & Alligation
LCM & HCF
Co-Ordinate Geometry
Pipe & Cistern
Probability
Boat & Streams
Problem on Age
Permutation & Combination
Problem on Trains