Mathematics S1,S2,S3 WST01: The Normal Distribution Topical Past Paper Questions
Edexcel A Level Mathematics S1,S2,S3 (WST01) past-paper questions on The Normal Distribution, free. This topic is frequently examined across 12 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A train travels daily between two cities. The probability that the train arrives no more than 2 minutes late is 0.45 Bobby randomly selects 30 of these train journeys between the two cities. The random variable X represents the number of times the train arrives to more than 2 min…
When purchasing a pair of glasses from an optician, customers are offered insurance to cover accidental damage. Past records from the optician show that 30% of customers buy insurance when they purchase a pair of glasses. In a random sample of 40 customers who have purchased a pa…
The weights of bags of carrots, C kg, are such that $C \sim \mathrm{N}(1.2, 0.03^{2})$ Three bags of carrots are selected at random. (a) Calculate the probability that their total weight is more than 3.5 kg. (4) The weights of bags of potatoes, R kg, are such that $ R \sim \mathr…
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