9FM Probability Quiz

• Impossible

• Unlikely

• Likely

• Certain

Answer explanation

Anything less than 0.5 is unlikely

A letter is chosen at random from the word EXCELLENT. How many different elements are in the sample space?

• 6

• 7

• 8

• 9

Answer explanation

Sample space = {E, X, C, L, N, T}

In a single throw of one die, find the probability of having an even number

From a pack of 52 cards, one card is drawn at random. Find the probability of drawing a spade.

Answer explanation

A bag contains four white, three red and two black balls. If a ball is drawn at random, the probability of it being a white ball is

• None of the above

A letter is chosen at random from the word PROBABILITY. Find the probability that it is a vowel (i.e., A, E, I, O or U)

A card is chosen at random from a pack of 52 playing cards. Find the probability that the card is either a three or a four.

Answer explanation

One of these cards is selected at random. What is the probability that the number on the card is either odd OR less than 5?

In a number set 3, 9, 4, 5, 9, 3, 9, 6, 3, 9 write the relative frequency of the score 3 as a decimal.

• 0.1

• 0.2

• 0.3

• 0.4

A die is tossed 60 times. How many times would you expect to get a 4?

• 4

• 6

• 10

• 15