Daily Practice

Foundation

17th November 2024

5 questions · Foundation tier · 282 questions in this band

1
Estimated Mean from Grouped Data
The table shows weights, in kg, of 20 parcels: 0-5 (freq 4), 5-10 (freq 10), 10-15 (freq 6). Estimate the mean weight.
2
Sampling Methods
A 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.
3
Collecting Data
Give one disadvantage of an observation study.
4
Comparing Data Sets
Team 1 has median height 165 cm and Team 2 has median height 172 cm. Write one comparison in context.
5
Combined Mean
Group A has 6 items with mean 15. Group B has 9 items with mean 25. Find the combined mean.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of November 2024, including the monthly compilation PDF.