Daily Practice · Foundation
May 1996 5-a-day
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The batch download puts all 2 tiers' May 1996 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in May 1996
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 1996A town of population 10,000 records 20 births in a year. Find the crude birth rate per 1000 people.
- 2nd May 1996A researcher wants a stratified sample of 30 from a population of 300 split into three regions: North (90 people), South (150 people) and East (60 people). She actually samples 9 from the North, 14 from the South and 7 from the East. Show whether her sample is correctly stratified, stating the correct numbers if not.
- 3rd May 1996Using the same table (0:4, 1:10, 2:4, 3:2), find the median number of siblings.
- 4th May 1996Data set X has a range of 12 and data set Y has a range of 5. Which data set is more consistent?
- 5th May 1996An index number is 140 with a base value of 20. Find this year's value.
- 6th May 1996A bag has 4 yellow and 6 white balls. What is P(picking a yellow ball)?
- 7th May 1996A dice is rolled 120 times and shows a 6 on 15 of those rolls. Find the relative frequency of rolling a 6.
- 8th May 1996A bag has 4 green and 6 yellow balls. One ball is drawn, replaced, then a second is drawn. Find P(both yellow).
- 9th May 1996A pyramid has a wide base and a narrow top. What does this suggest about the population?
- 10th May 1996A distribution has a long tail of high values on the right. What type of skew is this?
- 11th May 1996A quality inspector samples 120 items from a batch of 15000 and finds 3 defective, but the sample was taken only from items made in the last hour of the day. Explain why her estimate might not be reliable, and give the estimate assuming the sample were representative.
- 12th May 1996Find the mode of 5, 6, 5, 8, 6, 6, 9.
- 13th May 1996State one disadvantage of quota sampling.
- 14th May 1996Give one reason why participants should be assigned to groups at random.
- 15th May 1996A class interval is written 10 <= x < 20. Which of these values belong in it: 10, 20, 15?
- 16th May 1996A pie chart represents 60 people. What angle represents 1 person?
- 17th May 1996A rectangle labelled 20 contains two non-overlapping circles for events A and B with 8 and 5 inside them. How many outcomes are outside both circles?
- 18th May 1996Using the line of best fit from the previous question, estimate the y-value when x = 6.
- 19th May 1996Define correlation in your own words.
- 20th May 1996The Spearman's rank correlation coefficient between the age of a used car and its price is rs = -0.88. Describe the correlation.
- 21st May 1996State one change a researcher might make to a questionnaire as a result of a pilot survey.
- 22nd May 1996State whether 'shoe size' is discrete or continuous, and explain why.
- 23rd May 1996Group A has 18 items with mean 62. Group B has 22 items with mean 70. Find the combined mean.
- 24th May 1996A tally shows 4 full groups of five plus 2 extra marks for one category. What is the frequency?
- 25th May 1996A composite bar chart shows exam grades at a school: the bar has a section from 0 to 10 for Grade 9-7, a section from 10 to 34 for Grade 6-4, and a section from 34 to 40 for Grade 3-1. How many students got Grade 6-4?
- 26th May 1996Using the diagram from the question above, what is the mode?
- 27th May 1996A cumulative frequency graph for 80 data values is used to estimate the median. At what cumulative frequency value do you read across to the curve?
- 28th May 1996A choropleth map uses class intervals of 0-10, 10-30, 30-40 and 40-90. Why might this be misleading?
- 29th May 1996What percentage of data lies below the 40th percentile?
- 30th May 1996Which spreadsheet formula would you use to find how many values are in the range C1 to C50?
- 31st May 1996A researcher decides her sample size was too small after seeing her results. Which stage of the cycle does this belong to?