Foundation
14th April 2025
- 1Crude Rate and Rates of Change
A country of population 2,000,000 records 3,000 deaths in a year. Find the crude death rate per 100,000 people.
- 2Spearman's Rank Interpretation
The Spearman's rank correlation coefficient between hours spent watching TV and test score is rs = -0.4. Describe the strength and direction of the correlation.
- 3Conditional Probability (Foundation)
A box has 4 chocolate and 6 plain biscuits. One biscuit is eaten (it was chocolate), then a second is taken at random. Find P(second is chocolate given first was chocolate).
- 4Estimating from Samples (Foundation)
A sample of 80 light bulbs from a batch of 2000 found 4 were faulty. Estimate the number of faulty bulbs in the whole batch.
- 5Spreadsheets and ICT (Foundation)
Which spreadsheet formula would you use to find how many values are in the range C1 to C50?
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