7. Discrete random variables
Interactive practice questions
Which of the following describes a Bernoulli random variable?
Select all that apply.
A dice is rolled. $X=$X=the number appearing uppermost on the dice
A
Two coins are tossed. $X=$X=the number of heads tossed
B
Two coins are tossed. $X=1$X=1 if at least one head shows, $X=0$X=0 if there are no heads showing.
C
A dice is rolled. $X=1$X=1 if an even number shows uppermost, $X=0$X=0 if an odd number shows uppermost.
D
Easy
1min
Which of the following describes a Bernoulli random variable?
Easy
< 1min
A family with three children is chosen at random from the Australian census and whether the family has three girls is observed.
Easy
4min
A dice is rolled once in an experiment and the focus is on whether a $4$4 appears uppermost on the dice.
Easy
1min
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