The starter and exit quiz of the lesson “Conditional probability in a two-way table”, from the unit “Conditional probability” (Year 11 Maths) by Oak National Academy.
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Oak National Academy
12 questions
Which symbol is used to represent the union of two sets?
What does this symbol represent: ' ?
What region is shown shaded in this Venn diagram?
ξ = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}, A = {multiples of 4}, B = {factors of 12}. Find P(A' ∩ B').
Which combination of events is highlighted in the tree diagram?
Lucas and Izzy each play one game of chess that they can either win or lose. P(Lucas wins ∩ Izzy wins) = ___ (give your answer as a decimal).
The probability of an outcome occurring given that another event has occurred is called ___ probability.
Select the example of events which are not independent.
The table shows the types of marble in a bag. Match each event to its probability.
A marble is taken at random from a box of blue and green marbles. Alex works out that P(swirl and blue) = 0. This shows the event 'taking a blue marble' and the event 'taking a swirl marble' are...
A 20-sided die with integers from 1 to 20 written on it is rolled once. Select the pair of mutually exclusive events.
A deck of cards has a number on it (either prime or non-prime), and a symbol (a circle, square, or wave). A card is selected at random from the deck. Find P(square | prime).
