Important MCQs Probability 3 - Statistics for Data Analyst

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.

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?