Daily Practice · Foundation
February 1995 5-a-day
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The batch download puts all 2 tiers' February 1995 sheets in a single PDF, each tier behind its own divider page - 56 sheets in one file.
Every sheet in February 1995
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st February 1995In a pie chart representing 120 people, 30 people chose 'Yes'. What angle represents 'Yes'?
- 2nd February 1995A Venn diagram shows 40 people: 22 own a car, 15 own a bike, 6 own both. Find the probability a random person owns neither.
- 3rd February 1995A scatter graph shows points scattered with no clear pattern. What type of correlation does this show?
- 4th February 1995A 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.
- 5th February 1995Two data sets give correlation coefficients rs = 0.6 and rs = -0.9. Which shows the stronger relationship?
- 6th February 1995What is a pilot survey?
- 7th February 1995Is 'height of a plant in cm' discrete or continuous data?
- 8th February 1995Three groups have 8 items with mean 10, 12 items with mean 15, and 5 items with mean 20. Find the combined mean.
- 9th February 1995Using the survey in the previous question (Red 6, Blue 9, Green 4, Yellow 5), which colour is the mode?
- 10th February 1995A 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?
- 11th February 1995A 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.
- 12th February 1995A frequency table has class frequencies 5, 9, 14, 7 for four consecutive classes. Find the cumulative frequency of the third class.
- 13th February 1995A 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?
- 14th February 1995In 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?
- 15th February 1995Data 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.
- 16th February 1995Which stage of the statistical enquiry cycle comes immediately after collecting the data?
- 17th February 1995A student uses figures from a government website for her project. Is this primary or secondary data?
- 18th February 1995Find the median of: 3, 5, 8, 10.
- 19th February 1995Two 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.
- 20th February 1995Using two fair six-sided dice added together, find P(total is 7).
- 21st February 1995Two 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?
- 22nd February 1995A time series graph generally slopes upward from left to right over several years. What is this called?
- 23rd February 1995Out 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.
- 24th February 1995In a survey of 40 students, 25 like Maths. Of those 25, 18 also like Science. Find P(likes Science given likes Maths).
- 25th February 1995A bar chart's vertical axis runs from 0 to 10 in equal steps of 2. Is this axis likely to be misleading?
- 26th February 1995The 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.
- 27th February 1995Give one reason why the response options '0-5, 5-10, 10-15' are a poor choice for hours of homework.
- 28th February 1995Find the 4-point moving average of 8, 12, 16, 20.