Practice — what type is this question? (Probability)

11.1 Events A and B are independent. P(A) = 0,4 and P(B) = 0,25. 11.1.1 Represent the given information on a Venn diagram. Indicate on the Venn diagram the probabilities associated with each region. 11.1.2 Determine P(A or NOT B).

Source: DBE Mathematics Paper 1, November 2019, Question 11.1

Motors Incorporated manufacture cars with 5 different body styles, 4 different interior colours and 6 different exterior colours. The interior colour of the car must NOT be the same as the exterior colour. Motors Incorporated wants to display one of each possible variation of its car in their showroom. The showroom has a floor space of 500 m² and each car requires a floor space of 5 m². Is this display possible? Justify your answer with the necessary calculations.

Source: DBE Mathematics Paper 1, November 2019, Question 11.2

Unique codes of 5 digits are to be created using the digits from the set {3 ; 4 ; 5 ; 6 ; 7 ; 8 ; 9}. The digits may NOT be repeated. 11.1.2 How many unique 5-digit codes can be formed?

Source: DBE Mathematics Paper 1, November 2018, Question 11.1.2

12.2 A committee of 3 must be chosen from 8 people. In how many ways can the committee be selected?

Practice question — not sourced from a past paper.