CAPE Applied Mathematics Unit 1 · 2014 · Paper 1 · Question Q25
Item 25 refers to the following information.
The discrete random variable Y, where y takes on only the values 1, 2, 3 and 4, has a cumulative distribution function F(y) which is represented in the table below.
\begin{array}{|c|c|c|c|c|} \hline y & 1 & 2 & 3 & 4 \\ \hline F(y) & 0.37 & 0.58 & 0.80 & 1 \\ \hline \end{array}
The P(Y = 3) is
- (A)0.20
- (B)0.21
- (C)0.22
- (D)0.37
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