Daily Practice

Foundation

15th April 2026

5 questions · Foundation tier · 282 questions in this band

1
Risk (Foundation)
Out of 200 people who ate a certain meal, 10 became ill. What is the risk of becoming ill, as a fraction in its simplest form?
2
Skewness by Inspection
Describe, using the mean and median, how you could tell that a distribution is positively skewed without drawing a graph.
3
Percentiles
A cumulative frequency graph shows that a value of 18 corresponds to a cumulative frequency of 45 out of 60 total data points. Find the percentile.
4
Crude Rate and Rates of Change
A town of population 10,000 records 20 births in a year. Find the crude birth rate per 1000 people.
5
Spearman's Rank Interpretation
Two data sets give correlation coefficients rs = 0.6 and rs = -0.9. Which shows the stronger relationship?

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