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Oak National Academy
12 questions
The (arithmetic) __________ for a set of numerical data is the sum of the values divided by the number of values. It is a measure of central tendency representing the average of the values.
Sam scored 85, 92, 88, 90, and 95 on five tests. What is Sam's average test score?
The daily high temperatures for a week were 24°C, 26°C, 28°C, 27°C, 26.5°C, 27.5°C, and 28.5°C. What was the average high temperature for the week (2 d.p.)?
The monthly rainfall amounts for a year were 63.5 mm, 81.3 mm, 104.1 mm, 71.1 mm, 91.4 mm, 114.3 mm, 99.1 mm, 79.2 mm, 68.6 mm, 86.4 mm, 106.7 mm, and 96.5 mm. What was the average (1 d.p.)?
The mean of five numbers is 8. Four of the numbers are 5, 7, 9, and 10. What is the fifth number?
You have a set of 10 numbers. The mean of these numbers is 15. If you add 5 to each number in the set, what will be the new mean?
___ is the careful organisation of a complicated project (set of activities) so that it happens in a successful and effective way.
This table shows various tasks in a project. How long does it take to complete activity C?
This table shows various tasks in a project. How long does it take to complete activity E?
This table shows various tasks in a project. What activity must be completed before activity C can start?
This table shows various tasks in a project. Which activities must be completed before activity E can start?
This table shows various tasks in a project. If only 1 person was working on the project, how long (in minutes) would it take to complete the project?
