Daily Practice · Foundation
May 2021 5-a-day
Printing for a group?
The batch download puts all 2 tiers' May 2021 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in May 2021
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st May 2021A scientist tests a new plant food but only uses it on the healthiest-looking plants. Explain why this is a flawed design.
- 2nd May 2021The frequencies for four class intervals are 6, 9, 11, 4. Find the total number of data values.
- 3rd May 2021In a pie chart representing 120 people, 30 people chose 'Yes'. What angle represents 'Yes'?
- 4th May 2021A Venn diagram shows 40 people: 22 own a car, 15 own a bike, 6 own both. Find the probability a random person owns neither.
- 5th May 2021A scatter graph shows points scattered with no clear pattern. What type of correlation does this show?
- 6th May 2021A researcher finds that towns with more fire engines have more fire damage, and concludes that fire engines cause fire damage. Identify the flaw in this reasoning and suggest the true common cause.
- 7th May 2021Two data sets give correlation coefficients rs = 0.6 and rs = -0.9. Which shows the stronger relationship?
- 8th May 2021What is a pilot survey?
- 9th May 2021Is 'height of a plant in cm' discrete or continuous data?
- 10th May 2021Three groups have 8 items with mean 10, 12 items with mean 15, and 5 items with mean 20. Find the combined mean.
- 11th May 2021Using the survey in the previous question (Red 6, Blue 9, Green 4, Yellow 5), which colour is the mode?
- 12th May 2021A bar chart uses a scale where each small square represents 2 people. A bar is 7 squares tall. How many people does the bar represent?
- 13th May 2021A stem-and-leaf row, with key '3|1 means 31', is '3|0 2 4 4 7 9'. Find the median of these six values.
- 14th May 2021A frequency table has class frequencies 5, 9, 14, 7 for four consecutive classes. Find the cumulative frequency of the third class.
- 15th May 2021A choropleth map of rainfall uses two different hues (for example yellow to red) rather than one hue getting darker. Why can this style of shading be a problem?
- 16th May 2021In a class of 30 students, a student's mark is at the 90th percentile. Roughly how many students scored less than or equal to that mark?
- 17th May 2021Data on 200 students' exam scores is in a spreadsheet. Give one advantage of using a spreadsheet rather than calculating the mean and range by hand.
- 18th May 2021Which stage of the statistical enquiry cycle comes immediately after collecting the data?
- 19th May 2021A student uses figures from a government website for her project. Is this primary or secondary data?
- 20th May 2021Find the median of: 3, 5, 8, 10.
- 21st May 2021Two rows of a pictogram show 4.5 symbols and 3.5 symbols, with a key of 1 symbol = 20 pounds. Work out the combined total for both rows.
- 22nd May 2021Using two fair six-sided dice added together, find P(total is 7).
- 23rd May 2021Two frequency polygons are drawn on the same axes for boys' and girls' test scores. What feature of the graphs shows which group generally scored higher?
- 24th May 2021A time series graph generally slopes upward from left to right over several years. What is this called?
- 25th May 2021Out of 600 drivers who used a phone while driving, 24 had an accident that year, compared with 9 out of 900 drivers who did not use a phone. Calculate the risk of an accident for each group.
- 26th May 2021In a survey of 40 students, 25 like Maths. Of those 25, 18 also like Science. Find P(likes Science given likes Maths).
- 27th May 2021A bar chart's vertical axis runs from 0 to 10 in equal steps of 2. Is this axis likely to be misleading?
- 28th May 2021The table shows ages, in years, of 50 people at a gym: 10-20 (freq 6), 20-30 (freq 18), 30-40 (freq 16), 40-50 (freq 10). Estimate the mean age.
- 29th May 2021Give one reason why the response options '0-5, 5-10, 10-15' are a poor choice for hours of homework.
- 30th May 2021Find the 4-point moving average of 8, 12, 16, 20.
- 31st May 2021Are 'rolling an even number' and 'rolling a 5' on a normal six-sided dice mutually exclusive?