5 marksProbability, Probability Distributions and Regression

CAPE Integrated Mathematics · 2017 · Paper 2 · Question 3(d)(iii)

Calculate the mean and variance of X.

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3(a)Identify TWO suitable sample methods and explain how ONE of the methods could have been used by the teacher to select the 50 students from the 100 Class 1…[4 marks]
3(b)Complete the histogram to represent the data. The first two columns are already drawn.[4 marks]
3(c)A student is selected at random from the 50 students in the sample. Using the histogram or otherwise, determine the probability that the student spends 26…[5 marks]
3(d)(i)Determine the value of q in the probability distribution table.[2 marks]
3(d)(ii)Complete the probability distribution table.[5 marks]

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