Probability

If a die is thrown what is the probability that it will land with a 4 or a 6 facing up?

• $\frac{1}{3}$

• $\frac{1}{2}$

• $\frac{2}{3}$

• $\frac{3}{4}$

An event with a relative frequency of 0.1 is

• is certain to occur

• has a good chance of occurring.

• is unlikely to occur

• will never occur

John spins the pointer. The probability that it stops on an odd number is

• $\frac{1}{3}$

• $\frac{1}{2}$

• $\frac{2}{3}$

• $\frac{3}{4}$

40 balls are numbered 1 to 40.

One ball is selected at random.

The probability that the number on the chosen ball will contain the numeral "1" is

• $\frac{4}{40}$

• $\frac{10}{40}$

• $\frac{13}{40}$

• $\frac{12}{40}$

A six-sided die is rolled 600 times.

How many times would you expect the die with the number "6" facing up?

• 60

• 100

• 200

• 50

A dart is thrown at the board shown

A prize is won if the number hit is an even number.

The probability that a prize will be won with one throw, assuming the board is hit, is:

• $\frac{2}{9}$

• $\frac{3}{9}$

• $\frac{4}{9}$

• $\frac{5}{9}$

An event with a probability of 1:

• is certain to occur

• has an even chance of occurring.

• is unlikely to occur

• will never occur

A ball is drawn from a bag containing 7 red, 3 white, and 6 blue balls.

The probability that it is a red ball is:

• $\frac{3}{16}$

• $\frac{7}{16}$

• $\frac{9}{16}$

• $\frac{10}{16}$

A coin is tossed twice.

What is the probability that both coins are heads?

• 0.5

• 0.25

• 0.4

• 0.2

If the weather forecast calls for a 60% chance of rain on Saturday, it means that

• It will rain on 60% of the day

• 60 ml of rain will fall that day

• There is a better than half chance that it will rain on that day

• There is only a very small chance that it will rain that day