Analysis and Approaches for IBDP Maths Ebook 2 | Page 254

Your Practice Set – Analysis and Approaches for IBDP Mathematics
4. The random variable X has the probability density function
x
f( x)
� , �1� x � 3.
2
(a)
(b)
Write down the mode.
Find the exact value of the median.
(c) Find the exact value of E( X ) .
[1]
[4]
[3]
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