Probability words and the probability scale

A fair six-sided dice is rolled once.

Write down the probability that the dice lands on a number less than 3.

Choose the best word from impossible, unlikely, evens, likely, certain for each event.

1. A fair coin lands on heads.
2. It will be daytime somewhere in the world at some point tomorrow.
3. An ordinary dice lands on 7.

On a probability scale from 0 to 1, write down the number where each event belongs.

1. An impossible event
2. An event with an even chance
3. A certain event

Here is a probability scale, labelled from 0 to 1.

1. Mark with a cross the probability that a fair coin lands on tails.
2. Mark with a cross the probability that an ordinary fair dice lands on the number 8.

A bag contains 9 blue counters and 1 red counter. Zainab takes one counter without looking.

Is she likely or unlikely to take a red counter? Give a reason for your answer.

The probability that it rains on a school trip is 0.3.

Work out the probability that it does not rain.

A fair six-sided dice is rolled once. Write down the probability that it lands on

1. the number 5
2. the number 7
3. a number less than 7

A spinner has three colours. The probability of red is 14 and the probability of blue is 12.

Work out the probability that the spinner lands on red or blue.

A bag contains only red, blue and green counters. The probability of taking a red counter is 0.2 and the probability of taking a blue counter is 0.5.

1. Work out the probability of taking a green counter.
2. There are 40 counters in the bag. How many are blue?

A fair eight-sided spinner has sections numbered 1 to 8.

The spinner is spun once.

1. Write down the word that best describes the probability that the spinner lands on 9.
2. Find the probability that the spinner lands on a multiple of 3.