Mathematics 4024 · O Level · Relative and expected frequencies

Relative and expected frequencies — practice question

Kamal keeps a daily count of the phone calls he gets at work over $20$ days. The table shows the results.
(a)[1]

State the relative frequency of Kamal receiving $0$ to $5$ phone calls at work in one day.

(b)[2]

Kamal works for $160$ days. Find how many of those days Kamal would expect to get $11$ or more phone calls at work.

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