Daily Practice

Higher

18th December 2025

5 questions · Higher tier · 360 questions in this band

1
Time Series and Moving Averages
Find the 3-point moving average of 14, 18, 20.
2
Grouped Frequency Tables
Using the data in the previous question (12, 18, 25, 31, 9, 22, 15), state the frequency of the interval 20 <= x < 30.
3
Pictograms
A pictogram key shows 1 symbol = 10 pupils. A row has 3 full symbols. How many pupils does the row represent?
4
Probability Basics and the Probability Scale
An event has a probability of 0.2 of happening. What is the probability that it does not happen?
5
Bar and Composite Bar Charts
A composite bar chart shows exam grades at a school: the bar has a section from 0 to 10 for Grade 9-7, a section from 10 to 34 for Grade 6-4, and a section from 34 to 40 for Grade 3-1. How many students got Grade 6-4?

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