\

SPM Additional Mathematics 2023, Paper 1 (Question 12)

Question 12:A farm produce strawberries. The masses of the strawberries, x grams, are normally distributed such that X∼ N[20, (0.5)2].(a) State the mean and the variance of the distribution. [1 mark](b) Diagram 8 shows the standard normal distribution graph for mass of the strawberries. The shaded region represents the probability that the mass of the … Read more

SPM Additional Mathematics 2023, Paper 1 (Question 1 – 3)

Question 1:It is given that four consecutive terms of a sequence are 50, 45, x and y. State the value of(a) y – x if the sequence is an arithmetic progression,(b) y/x if the sequence is a geometric progression.[2 marks] Solution: (a)$$ \begin{aligned} & y-x=45-50 \\ & y-x=-5 \end{aligned} $$(b)$$ \begin{aligned} & \frac{y}{x}=\frac{45}{50} \\ & \frac{y}{x}=\frac{9}{10} … Read more