EASY
MYP:4-5
IMPORTANT
Earn 100

Here is the sample space for choosing a card from a standard deck of 52 playing cards.

Question Image

Let A be the event 'getting a picture card'.
Let B be the event 'getting a heart'.

Let C be the event 'getting an even number'.

Calculate the probability of 'getting a picture card', or PA

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Important Questions on What are the Chances? (Simple Probability)

EASY
MYP:4-5
IMPORTANT

Here is the sample space for choosing a card from a standard deck of 52 playing cards.

Question Image

Let A be the event 'getting a picture card'.
Let B be the event 'getting a heart'.

Let C be the event 'getting an even number'.

Calculate the probability of 'getting a heart', or PB.

EASY
MYP:4-5
IMPORTANT

Here is the sample space for choosing a card from a standard deck of 52 playing cards.

Question Image

Let A be the event 'getting a picture card'.
Let B be the event 'getting a heart'.

Let C be the event 'getting an even number'.

Calculate PC.

EASY
MYP:4-5
IMPORTANT

Here is the sample space for choosing a card from a standard deck of 52 playing cards.

Question Image

Let A be the event 'getting a picture card'.
Let B be the event 'getting a heart'.

Let C be the event 'getting an even number'.

Calculate PA'.

EASY
MYP:4-5
IMPORTANT

Here is the sample space for choosing a card from a standard deck of 52 playing cards.

Question Image

Let A be the event 'getting a picture card'.
Let B be the event 'getting a heart'.

Let C be the event 'getting an even number'.

Calculate PB'.

EASY
MYP:4-5
IMPORTANT

Here is the sample space for choosing a card from a standard deck of 52 playing cards.

Question Image

Let A be the event 'getting a picture card'.
Let B be the event 'getting a heart'.

Let C be the event 'getting an even number'.

Calculate PC'.

EASY
MYP:4-5
IMPORTANT

A bag contains 20 clip-on bicycle bells. Some are red and some are blue. A bell is chosen at random from the bag. R  is the event 'picking a red bell'.
If PR'=14, find the number of red bicycle bells in the bag.

MEDIUM
MYP:4-5
IMPORTANT

A box contains three brand-A batteries and seven brand-B batteries.
The probability that a brand-A battery is faulty is 0.3, and the probability that a brand-B battery is faulty is 0.4.

Copy and complete the tree diagram to show all the probabilities.

Question Image

EASY
MYP:4-5
IMPORTANT

A box contains three brand-A batteries and seven brand-B batteries.
The probability that a brand-A battery is faulty is 0.3, and the probability that a brand-B battery is faulty is 0.4.

A battery is selected at random from the box. Calculate the probability that the battery is a faulty brand-A