Yr 8 Probability - 19thOctober

A bag contains 20 bulbs. 8 are yellow, 5 are red, 4 are white and 3 are pink. Sam takes one bulb at random. Find the probability that the bulb he takes is white.

[Give your answer in decimal or simplified fraction]

A bag contains 20 bulbs. 8 are yellow, 5 are red, 4 are white and 3 are pink. Sam takes one bulb at random. Find the probability that the bulb he takes is blue.

[Give your answer in decimal or simplified fraction]

A bag contains 20 bulbs. 8 are yellow, 5 are red, 4 are white and 3 are pink. Sam takes one bulb at random. Find the probability that the bulb he takes is not pink.

[Give your answer in decimal or simplified fraction]

Joe spins a fair five-sided spinner numbered 2 , 3 , 4 , 5 and 6.

Write down the probability that the spinner lands on an odd number.

[Give your answer in decimal or simplified fraction]

Joe spins a fair five-sided spinner numbered 2 , 3 , 4 , 5 and 6.

Write down the probability that the spinner lands on a prime number.

[Give your answer in decimal or simplified fraction]

Joe spins a fair five-sided spinner numbered 2 , 3 , 4 , 5 and 6.

Write down the probability that the spinner lands on the number 7.

[Give your answer in decimal or simplified fraction]

Danny either walks or cycles to school. The probability that he cycles to school is $\frac{1}{5}$ (or 0.2).
Write down the probability that Danny walks to school.

[Give your answer in decimal or simplified fraction]

A bag contains 50 counters. 10 of the counters are red. One of the counters is taken from the bag at random.

Find the probability that the counter is not red.

[Give your answer in decimal or simplified fraction]