Skip to content
MathsGenie logo
Quick links
Open app

Course home

  1. A Level
  3. Maths AQA
  5. Question bank

2.2.3 Central tendency, variation and standard deviation

EasyMedium
1234
Question 4
58%

The times 12 athletes took to run 400m is summarised in the table below.

AthleteABCDEFGHAIJK
Time (s)45.246.946.146.245.445.147.845.445.546.146.445.7
a.

Find the mean time taken.

[2]
b.

Find the standard deviation for these times.

[2]
c.

Find the median, upper and lower quartiles of these data.

[3]

2.2.3 Central tendency, variation and standard deviation Questions

  1. A Level
  2. /Maths
  3. /2.2.3 Central tendency, variation and standard deviation