11Adv yearly revision (WestMath21)

Answer explanation

A gym collects data about their clients.

From those listed below, which represents a discrete random variable?

• Their height.

• The length of time that they can hold their arms out horizontally.

• The length of their arm-span.

• The number of push-ups that they can complete.

Answer explanation

The graphs of two trigonometric functions are shown on the number plane.

Which two functions are shown?

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Answer explanation

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The graph shown has a vertical asymptote at x = –4 and a horizontal asymptote at y = 0.

The curve crosses the y-axis at y = 2.

Which equation could describe the curve?

Answer explanation

The Venn diagram shows the number of members of two groups, the Chess Club and the Football Team, in a Year 12 Maths Class.

If a person is chosen at random from those who are not in the Football Team, what is the probability that they are also not in the Chess Club ?

Answer explanation

Answer explanation

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