Probability 1 The twoway table shows the breakdown

Probability

1 The two-way table shows the breakdown of employees in a company. Find the probability that an employee is female.

2 The two-way table shows the breakdown of employees in a company. Find the probability that an employee is male and a manager.

3 A random sample of 500 visitors to 4 zones of a museum were asked their age in years. The results are summarised in the table below. Find the probability that a visitor chosen at random was over 35 and visited the green or orange zone.

4 A random sample of 500 visitors to 4 zones of a museum were asked their age in years. The results are summarised in the table below. Find the probability that a visitor chosen at random is under 19.

5 A random sample of 500 visitors to 4 zones of a museum were asked their age in years. The results are summarised in the table below. Find the probability that a visitor chosen at random did not go to the blue zone.

6 How would the shaded area in the Venn diagram be written in set notation?

7 E F 450 264 94 132

8 E F 450 264 94 132

9 A 0. 11 C B 0. 03 0. 18 0. 27 0. 22

10 Determine which of the following statements is most true for the event “A student passes both A-level Maths pure exam papers”. Independent and mutually exclusive Independent and not mutually exclusive Not independent and mutually exclusive

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16 A bag contains 7 blue discs, 6 red discs and 1 yellow disc. Two discs are drawn at random from the bag without replacement. Find the probability that exactly one of the discs is red.