Daily Practice

Higher

19th June 2024

5 questions · Higher tier · 360 questions in this band

1
The Normal Distribution
Test scores are normally distributed with mean 65 and standard deviation 8. Estimate the percentage of students scoring between 65 and 81.
2
The Binomial Distribution
A basketball player has a free-throw success probability of 0.7. She takes 5 free throws. Find the probability that she makes at least 4.
3
Quality Assurance and Control Charts
A sample mean falls outside the action limits on a control chart. What should happen to the process?
4
Spearman's Rank Correlation
Two judges rank 4 dogs in a competition. Judge A's ranks: 1, 2, 3, 4. Judge B's ranks: 1, 2, 3, 4. Find the sum of d^2.
5
Spreadsheets and ICT (Higher)
State one advantage of entering raw data into a spreadsheet rather than calculating statistics by hand.

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Any date always gives the same five questions, so a sheet can be set again or shared. All of June 2024, including the monthly compilation PDF.