15 people sit a test. Their test scores are listed here.
29, 27, 12, 32, 42, 26, 7, 23, 22, 31, 40, 9, 18, 35, 8.
(a(i))[2]
Complete the frequency table. You can use the tally column for support.
(a(ii))[2]
Use the table to finish the bar chart.
(b(i))[1]
Finish the tree diagram.
(b(ii)(a))[2]
From the tree diagram, find the probability that a train is late on both days.
(b(ii)(b))[2]
From the tree diagram, determine the probability that a train is not late on Monday and late on Tuesday.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Tallies or frequencies that are correct” …
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