Daily Practice · Foundation
January 2019 5-a-day
Printing for a group?
The batch download puts all 2 tiers' January 2019 sheets in a single PDF, each tier behind its own divider page - 62 sheets in one file.
Every sheet in January 2019
The same date always regenerates the same five questions, so a sheet you print today is the sheet a classmate prints tomorrow.
- 1st January 2019On a population pyramid, which axis shows the age groups?
- 2nd January 2019A box plot shows a long whisker on the left and a short whisker on the right, with the median close to the right of the box. What type of skew does this suggest?
- 3rd January 2019A survey of 30 shoppers out of 900 in a store found the mean amount spent was 18.50 pounds. What is the best estimate of the mean amount spent by all 900 shoppers?
- 4th January 2019Find the median of 8, 3, 15, 3, 10.
- 5th January 2019A school of 600 students wants a sample of 30. A teacher decides to only survey students in her own class of 30. State one problem with this method.
- 6th January 2019A scientist tests a new plant food but only uses it on the healthiest-looking plants. Explain why this is a flawed design.
- 7th January 2019The frequencies for four class intervals are 6, 9, 11, 4. Find the total number of data values.
- 8th January 2019In a pie chart representing 120 people, 30 people chose 'Yes'. What angle represents 'Yes'?
- 9th January 2019A Venn diagram shows 40 people: 22 own a car, 15 own a bike, 6 own both. Find the probability a random person owns neither.
- 10th January 2019A scatter graph shows points scattered with no clear pattern. What type of correlation does this show?
- 11th January 2019A 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.
- 12th January 2019Two data sets give correlation coefficients rs = 0.6 and rs = -0.9. Which shows the stronger relationship?
- 13th January 2019What is a pilot survey?
- 14th January 2019Is 'height of a plant in cm' discrete or continuous data?
- 15th January 2019Three groups have 8 items with mean 10, 12 items with mean 15, and 5 items with mean 20. Find the combined mean.
- 16th January 2019Using the survey in the previous question (Red 6, Blue 9, Green 4, Yellow 5), which colour is the mode?
- 17th January 2019A 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?
- 18th January 2019A 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.
- 19th January 2019A frequency table has class frequencies 5, 9, 14, 7 for four consecutive classes. Find the cumulative frequency of the third class.
- 20th January 2019A 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?
- 21st January 2019In 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?
- 22nd January 2019Data 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.
- 23rd January 2019Which stage of the statistical enquiry cycle comes immediately after collecting the data?
- 24th January 2019A student uses figures from a government website for her project. Is this primary or secondary data?
- 25th January 2019Find the median of: 3, 5, 8, 10.
- 26th January 2019Two 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.
- 27th January 2019Using two fair six-sided dice added together, find P(total is 7).
- 28th January 2019Two 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?
- 29th January 2019A time series graph generally slopes upward from left to right over several years. What is this called?
- 30th January 2019Out 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.
- 31st January 2019In a survey of 40 students, 25 like Maths. Of those 25, 18 also like Science. Find P(likes Science given likes Maths).