Random Variables
Interactive practice questions
A coin is tossed three times and the total number of tails is recorded.
a
Can this experiment be represented by a discrete random variable?
Yes
A
No
B
b
If $X$X represents the number of possible tails in the three coin tosses, list all the possible outcomes of the experiment.
Write all the outcomes on the same line, separated by commas.
Easy
< 1min
On a popular TV cooking show, contestants are to randomly choose a blue, red or yellow serviette from a box to split themselves into random cooking teams.
Easy
< 1min
The number of pears on each pear tree in an orchard is recorded.
Easy
< 1min
The masses of babies born in a local hospital in the last month have been recorded.
One midwife is interested in using this data to help predict the mass of the next baby to be born.
Easy
< 1min
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