alleryIf the chance that it rains tomorrow is 3/7, the chance it stays dry is
- 1/7
- 5/7
- 4/7
- 3/7
Show answer and solution
Correct answer: C. 4/7
The complement is 1 - 3/7 = 4/7.
GMAT Probability — practice questions — page 2
Explore 104 free Probability questions in GMAT Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 31–60 of 104.
If the chance that it rains tomorrow is 3/7, the chance it stays dry isRead the answer and worked solution →A probability of 0.08 is written as a percentage asRead the answer and worked solution →A lottery sells 200 tickets and has 5 prizes. Chance a ticket wins?Read the answer and worked solution →A and B are mutually exclusive, P(A)=0.3 and P(B)=0.45. Find P(A or B).Read the answer and worked solution →Independent events have P(A)=1/3 and P(B)=1/4. Find P(A and B).Read the answer and worked solution →For independent events, P(A)=0.6 and P(B)=0.5. Find P(both occur).Read the answer and worked solution →P(A)=0.5, P(B)=0.4 and P(A and B)=0.2. Find P(A or B).Read the answer and worked solution →A spinner has 8 equal sectors numbered 1 to 8. Chance of a number above 5?Read the answer and worked solution →A class has 40 students, 18 of them girls. One is chosen. Chance of a girl?Read the answer and worked solution →A box has 50 bulbs and 4 are defective. Chance a chosen bulb is good?Read the answer and worked solution →A two-digit number is chosen at random. Chance that it is divisible by 9?Read the answer and worked solution →A die is thrown. Chance of getting a number greater than 4 or an even one?Read the answer and worked solution →Two dice are thrown. Chance of at least one six?Read the answer and worked solution →A standard deck contains how many court (face) cards in total?Read the answer and worked solution →On a standard die, the face opposite the face showing 2 carries the numberRead the answer and worked solution →How many equally likely outcomes arise when two dice are thrown once?Read the answer and worked solution →The set of all possible results of an experiment is called itsRead the answer and worked solution →A fair six-sided die is rolled once. What is the chance of not getting a six?Read the answer and worked solution →If an event occurs with probability 0.35, what is the probability that it does not occur?Read the answer and worked solution →Two fair coins are tossed together. What is the chance that both land heads?Read the answer and worked solution →Three fair coins are tossed. What is the probability that all three show heads?Read the answer and worked solution →One card is drawn from a 52-card deck. What is the chance it is a heart or a face card?Read the answer and worked solution →Events A and B are mutually exclusive. What is the probability that both occur?Read the answer and worked solution →A bag holds 2 red and 2 blue balls. A red ball is drawn and kept aside. What is the chance the next ball is red?Read the answer and worked solution →If P(A and B) = 0.12 and P(B) = 0.4, what is P(A given B)?Read the answer and worked solution →Independent events X and Y have P(X) = 0.25 and P(Y) = 0.8. Find P(X and Y).Read the answer and worked solution →What is the chance that a card drawn from a standard 52-card deck is a heart?Read the answer and worked solution →How many of the 52 cards are both hearts and face cards, and what is the chance of drawing one?Read the answer and worked solution →On the probability scale, the whole sample space is assigned which value?Read the answer and worked solution →A fair die is rolled. What is the chance that the number is odd?Read the answer and worked solution →
Worked practice questions
A probability of 0.08 is written as a percentage as
- 0.08%
- 0.8%
- 80%
- 8%
Show answer and solution
Correct answer: D. 8%
Multiplying 0.08 by 100 gives 8%.
A lottery sells 200 tickets and has 5 prizes. Chance a ticket wins?
- 1/25
- 1/50
- 1/20
- 1/40
Show answer and solution
Correct answer: D. 1/40
5 winning tickets out of 200 gives 5/200 = 1/40.
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