Daily Practice · Foundation
September 2006 5-a-day
Printing for a group?
The batch download puts all 2 tiers' September 2006 sheets in a single PDF, each tier behind its own divider page - 60 sheets in one file.
Every sheet in September 2006
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st September 2006In a pie chart representing 120 people, 30 people chose 'Yes'. What angle represents 'Yes'?
- 2nd September 2006A 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 September 2006A scatter graph shows points scattered with no clear pattern. What type of correlation does this show?
- 4th September 2006A 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 September 2006Two data sets give correlation coefficients rs = 0.6 and rs = -0.9. Which shows the stronger relationship?
- 6th September 2006What is a pilot survey?
- 7th September 2006Is 'height of a plant in cm' discrete or continuous data?
- 8th September 2006Three groups have 8 items with mean 10, 12 items with mean 15, and 5 items with mean 20. Find the combined mean.
- 9th September 2006Using the survey in the previous question (Red 6, Blue 9, Green 4, Yellow 5), which colour is the mode?
- 10th September 2006A 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 September 2006A 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 September 2006A frequency table has class frequencies 5, 9, 14, 7 for four consecutive classes. Find the cumulative frequency of the third class.
- 13th September 2006A 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 September 2006In 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 September 2006Data 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 September 2006Which stage of the statistical enquiry cycle comes immediately after collecting the data?
- 17th September 2006A student uses figures from a government website for her project. Is this primary or secondary data?
- 18th September 2006Find the median of: 3, 5, 8, 10.
- 19th September 2006Two 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 September 2006Using two fair six-sided dice added together, find P(total is 7).
- 21st September 2006Two 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 September 2006A time series graph generally slopes upward from left to right over several years. What is this called?
- 23rd September 2006Out 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 September 2006In a survey of 40 students, 25 like Maths. Of those 25, 18 also like Science. Find P(likes Science given likes Maths).
- 25th September 2006A bar chart's vertical axis runs from 0 to 10 in equal steps of 2. Is this axis likely to be misleading?
- 26th September 2006The 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 September 2006Give one reason why the response options '0-5, 5-10, 10-15' are a poor choice for hours of homework.
- 28th September 2006Find the 4-point moving average of 8, 12, 16, 20.
- 29th September 2006Are 'rolling an even number' and 'rolling a 5' on a normal six-sided dice mutually exclusive?
- 30th September 2006A histogram of ages has 5 equal-width bars covering 0-10, 10-20, 20-30, 30-40, 40-50 with heights 3, 7, x, 9, 2, and a total of 35 people. Find x.