Important MCQs Probability 3

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The post is about the MCQs Probability Test. There are 20 multiple-choice questions covering topics related to the Basics of Probability, addition and multiplication rules of probability, events, and types of events. Let us start with MCQs Probability Quiz with Answers.

Online MCQs about Probability with Answers

1. Two events are _____ if the occurrence of one event changes the probability of the other event.

 
 
 
 

2. _____ probability is the updated probability of an event based on new data.

 
 
 
 

3. If $X$ and $Y$ are mutually exclusive events with $P(X) = 0.295, P(Y) = 0.32$, then $P(X|Y)=$?

 
 
 
 

4. What is the probability that a ball is drawn at random from a jar?

 
 
 
 

5. If $A$ and $B$ are independent events with $P(A)=0.38$ and $P(B)=0.55$, then $P(A|B)=$?

 
 
 
 

6. A jar contains four marbles: Two marbles are red, one is green, and one is blue. One marble is taken from the jar. What is the probability that the marble is blue?

 
 
 
 

7. If two events are independent, then

 
 
 
 

8. One of the basic requirements of probability is

 
 
 
 

9. What is conditional probability?

 
 
 
 

10. Which of the following statements is(are) always true?

 
 
 
 

11. If $P(A) =0.80$, $P(B)=0.65$, and $P(A\cup B) = 0.78$, then $P(B|A) =$?

 
 
 
 

12. Events $A$ and $B$ are mutually exclusive with $P(A)=0.3$ and $P(B) = 0.2$. The probability of the complement of Event $B$ equals

 
 
 
 

13. If $A$ and $B$ are mutually exclusive events with $P(A) = 0.3$ and $P(B) = 0.5$, then $P(A \cup B) =?$

 
 
 
 

14. In an experiment, events $A$ and $B$ are mutually exclusive, if $P(A)=0.6$, then the probability of $B$

 
 
 
 

15. Suppose two events occur: The first event is drawing an ace from a standard deck of playing cards, and the second event is drawing another ace from the same deck. Note that the first ace is not reinserted into the deck after it is drawn. What term is used to describe these two events?

 
 
 
 

16. In statistics, a number between _____ is used to express the probability that an event will occur.

 
 
 
 

17. Two events are _____ if the occurrence of one event does not change the probability of the other event.

 
 
 
 

18. The probability of rain tomorrow is 40%. What is the probability of the complement of this event?

 
 
 
 

19. The multiplication law is potentially helpful when we are interested in computing the probability of

 
 
 
 

20. What does Bayes’s theorem enable data professionals to calculate?

 
 
 
 

MCQs Probability Quiz with Answers

MCQs Probability Quiz with Answers
  • If $A$ and $B$ are mutually exclusive events with $P(A) = 0.3$ and $P(B) = 0.5$, then $P(A \cup B) =?$
  • In an experiment, $A$ and $B$ are mutually exclusive events, if $P(A)=0.6$, then the probability of $B$
  • Which of the following statements is(are) always true?
  • One of the basic requirements of probability is
  • Events $A$ and $B$ are mutually exclusive with $P(A)=0.3$ and $P(B) = 0.2$. The probability of the complement of Event $B$ equals
  • The multiplication law is potentially helpful when we are interested in computing the probability of
  • If $P(A) =0.80$, $P(B)=0.65$, and $P(A\cup B) = 0.78$, then $P(B|A) =$?
  • If two events are independent, then
  • If $A$ and $B$ are independent events with $P(A)=0.38$ and $P(B)=0.55$, then $P(A|B)=$?
  • If $X$ and $Y$ are mutually exclusive events with $P(X) = 0.295, P(Y) = 0.32$, then $P(X|Y)=$?
  • What is the probability that a ball is drawn at random from a jar?
  • In statistics, a number between ———- is used to express the probability that an event will occur.
  • Two events are ———- if the occurrence of one event changes the probability of the other event.
  • What does Bayes’s theorem enable data professionals to calculate?
  • What is conditional probability?
  • Suppose two events occur: The first event is drawing an ace from a standard deck of playing cards, and the second event is drawing another ace from the same deck. Note that the first ace is not reinserted into the deck after it is drawn. What term is used to describe these two events?
  • ———— probability is the updated probability of an event based on new data.
  • The probability of rain tomorrow is 40%. What is the probability of the complement of this event?
  • Two events are ———– if the occurrence of one event does not change the probability of the other event.
  • A jar contains four marbles: Two marbles are red, one is green, and one is blue. One marble is taken from the jar. What is the probability that the marble is blue?
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Important MCQs Probability Quiz 2

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Online MCQs Probability Quiz with Answers. There are 20 multiple-choice questions covering topics related to the addition rule of probability, multiplication rule of probability, conditional probability, random experiment, and objective and subjective probability. Let us start with the MCQs Probability Quiz.

Please go to Important MCQs Probability Quiz 2 to view the test

MCQs Probability Quiz with Answers

MCQs Probability Quiz with Answers
  • Which of the following is not a correct statement about a probability
  • The collection of one or more outcomes from an experiment is called
  • If the occurrence of one event means that another cannot happen, then the events are
  • In which approach to probability the outcomes are equally likely to occur?
  • In the special rule of addition of probability, the events are always
  • The joint probability is
  • The special rule of multiplication of probability, the events must be
  • A listing of the possible outcomes of an experiment and their corresponding probability is called
  • Which of the following is not an example of a discrete probability distribution?
  • Which of the following is not a condition of the binomial distribution?
  • In a Poisson probability distribution
  • If a card is chosen from a standard deck of cards, what is the probability of getting a five or a seven?
  • If you roll a pair of dice, what is the probability that (at least) one of the dice is a 4 or the sum of the dice is 7?
  • If a card is chosen from a standard deck of cards, what is the probability of getting a diamond (♦) or a club(♣)?
  • The probability of occurrence of an event lies between
  • The tail or head, one or zero, and girl and boy are examples of
  • If $P(E)$ is the probability that an event will occur, which of the following must be false?
  • The addition rule states that, if the events $A$ and $B$ are ———-, then the probability of $A$ or $B$ happening is the sum of the probabilities of $A$ and $B$.
  • Objective probability is based on personal feeling, experience, or judgment.
  • The probability of no snow equals 1 minus the probability of snow. This is an example of what rule of probability?
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MCQs Skewness Basic Statistics 9

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The post is about MCQs Skewness Basic Statistics. There are 20 multiple-choice questions covering the topics of skewness, kurtosis, symmetrical distribution, and empirical relationship between mean, median, and mode. Let us start with the MCQs Skewness Basic Statistics Quiz.

Please go to MCQs Skewness Basic Statistics 9 to view the test

MCQs Skewness Basic Statistics with Answers

  • The shape of the symmetrical distribution is ————.
  • In a symmetrical distribution, mean, median, and mode are:
  • In a symmetrical distribution, the mean is ———— mode
  • A symmetrical distribution has a mean equal to 4. Its mode will be
  • If mean, median, and mode are all equal then distribution will be
  • The values of mean, median, and mode can be
  • The distribution in which mean = 60 and mode = 50, will be ————.
  • If in a distribution the left tail is longer than the right tail, then the distribution will be
  • If the mean is less than the mode, the distribution will be
  • In Uni-model distribution, if the mode is less than the mean, then the distribution will be
  • The empirical relation between mean, median, and mode is
  • Bowley’s coefficient of Skewness lies between
  • For a positively skewed distribution
  • For a moderately skewed distribution, which of the following hold
  • The distribution is symmetrical if the moment coefficient of skewness $\sqrt{b_1}$ is
  • A curve whose tail is longer to the right is called
  • If the mean is less than the mode, the distribution is
  • If the third moment about the mean is zero then the distribution is
  • Which of the following is negatively skewed?
  • The second moment about the mean is equal to
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