Daily Practice · Foundation
April 1997 5-a-day
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The batch download puts all 2 tiers' April 1997 sheets in a single PDF, each tier behind its own divider page - 60 sheets in one file.
Every sheet in April 1997
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st April 1997A coin is flipped 50 times and lands on heads 27 times. Find the relative frequency of heads.
- 2nd April 1997On a tree diagram, what do you do to find the probability of a single path through the branches?
- 3rd April 1997On a pyramid where male bars point left and female bars point right, the bar for females aged 20-24 is longer than the bar for males aged 20-24. What does this tell you?
- 4th April 1997Describe, using the mean and median, how you could tell that a distribution is positively skewed without drawing a graph.
- 5th April 1997A sample of 25 students from a school of 500 found that 5 walk to school. Estimate how many of all 500 students walk to school.
- 6th April 1997Find the mean of 4, 7, 9, 12, 18.
- 7th April 1997A researcher wants a sample of 50 from a population of 500 using systematic sampling, with a random start of 4. List the first three people selected.
- 8th April 1997What is a control group used for?
- 9th April 1997A grouped frequency table has intervals of unequal width, 0 <= x < 10 and 10 <= x < 40. Explain why this could make the table misleading when drawing a histogram.
- 10th April 1997A pie chart represents 200 people. One sector has an angle of 45 degrees. How many people does it represent?
- 11th April 1997Out of 25 pupils, 12 like football, 9 like tennis, and 4 like both. How many like neither sport?
- 12th April 1997A scatter graph shows points that generally rise from bottom left to top right. What type of correlation does this show?
- 13th April 1997A scatter graph shows that as temperature increases, the number of hot drinks sold decreases. What type of correlation is this?
- 14th April 1997For a class, the Spearman's rank correlation coefficient between shoe size and spelling test score is rs = 0.15. Describe the correlation.
- 15th April 1997A company pilots its customer feedback survey on 20 customers before sending it to all 5000 customers. Explain why using only 20 people is still useful.
- 16th April 1997A student uses last year's census results for her project instead of running her own survey. Is this primary or secondary data?
- 17th April 1997A class of 15 students has a mean score of 30. When combined with another class of 25 students, the combined mean of all 40 students is 40. Find the mean score of the second class.
- 18th April 1997A survey of favourite colours gives: Red 6, Blue 9, Green 4, Yellow 5. How many people were surveyed in total?
- 19th April 1997A bar chart shows the bar for 'Bus' with height 40 and the bar for 'Walk' with height 25. How many more pupils travel by bus than walk?
- 20th April 1997A stem-and-leaf diagram has rows: 0|5 8, 1|2 2 6, 2|1. How many data values are there in total?
- 21st April 1997For 80 data values, at what cumulative frequency do you read across to find the lower quartile?
- 22nd April 1997Two neighbouring regions on a choropleth map are shaded the same colour. What can you conclude about their values?
- 23rd April 1997Which percentile is the same as the median?
- 24th April 1997A spreadsheet shows the formula =SUM(F1:F5)/COUNT(F1:F5) in cell F6. What statistical measure does this formula calculate?
- 25th April 1997State two things that should be decided during the planning stage of the enquiry cycle.
- 26th April 1997State whether interviewing shoppers face-to-face about their favourite supermarket is primary or secondary data collection.
- 27th April 1997For the ordered data 6, 9, 11, 14, 16, 18, 20, 23, 25, 28, find the interquartile range.
- 28th April 1997A pictogram key shows 1 symbol = 6 cakes. A row has 1 symbol and a third of a symbol. How many cakes does the row represent?
- 29th April 1997A spinner with sections A, B and C is spun alongside a fair coin. How many outcomes are in the sample space, and what is P(getting C and Heads)?
- 30th April 1997A class interval is 20-30 with frequency 8. Give the coordinates of the point plotted for this class.