O-LevelMathematicsProbability4024/12 · May/June 2024 · Q133 Marks

Kamal records the number of phone calls he receives at work each day for 20 days. The results are shown in the table. Number of phone calls: 0 to 5 | 6 to 10 | 11 to 15 | 16 or more Frequency: 9 | 5 | 4 | 2

(a)Find the relative frequency of Kamal receiving 0 to 5 phone calls at work in one day.[1]
(b)Kamal works for 160 days. Find the number of these days Kamal would expect to receive 11 or more phone calls at work.[2]

Mark scheme

Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.

On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.

Topic: Probability, O-Level Mathematics (syllabus 4024). Structured question, 3 marks.
Source: O-Level Mathematics, May/June 2024 Paper 1 Variant 2, question 13.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content