The starter and exit quiz of the lesson “Statistical problems - drawing conclusions”, from the unit “Numerical summaries of data” (Year 8 Maths) by Oak National Academy.
Free to use. Edit it, share it and hand it out to your students.
Oak National Academy
12 questions
In a data investigation, the __________ is the entire set of people, creatures, plants or items that make up the whole group which is being studied.
___ is the relationship between two variables on a scatter graph.
Extrapolation is the process of estimating unknown values that are ___.
What type of correlation does the scatter graph show?
A data investigation finds a positive correlation between temperature and ice cream sales. What does this suggest?
The mean for the following numbers data set 8.2, 7.4, 11.3, 9.1 is ___.
Which is the least popular mode of transport in this school?
An investigation surveys residents of two towns about which type of car they drive. The stacked bar chart shows the results. Which is the most popular type of car in this survey?
The scatter graph shows the population of some towns and the number of phone towers the town has. Each point in the scatter graph represents a town or region. Match each town with its statement.
The scatter graph shows data about the sunshine duration and mean temperature for each month in a city. Which of the statements is the most valid?
A data investigation surveys 100 people in Oxford about their preferred mode of transport. The most popular mode of transport was bicycle. Which is the most valid conclusion based on these results?
___ can be present in any sample collected from a population and may affect the results of a statistical investigation (e.g. only asking year 7 pupils what food should be served in the school).
