Mathematics A, Further H235: Chi-Squared Tests Topical Past Paper Questions
OCR AS Mathematics A, Further (H235) past-paper questions on Chi-Squared Tests, free. This topic is frequently examined across 4 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
For a random sample of 160 employees of a large company, the principal method of transport for getting to work, arranged according to grade of employee, is shown in the table. A test is carried out at the 5% significance level of whether there is association between grade of empl…
A machine is used to toss a coin repeatedly. Rosa believes that the outcome of each toss made by the machine is not independent of the previous toss. Rosa gets the machine to toss a coin 6 times and record the number of heads, X, obtained. After recording the number of heads obta…
A student believes that if you ask people to choose an integer between 1 and 10, not all integers are equally likely to be chosen. The student asks a random sample of 100 people to choose an integer between 1 and 10 inclusive. The observed frequencies O, together with the values…
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