Search topics

Search
1 of 8 0-day streak

Calculate the standard deviation from the formula

DIFFICULTYintrostandardchallengeexam
QUESTION TYPEMix of allChange
Working table: 3 values, whole numberWorking table: 4 values, whole numberNOWMix of allRecommended
Question 1 of 8

Calculator allowed

The table shows the distance, in kilometres, travelled to work by four employees at a company, with the working for the standard deviation partly filled in

Distance (km)DeviationSquared deviation
13-636
2124
2124
2124
(a)2 marks

Find the sum of the deviations and the sum of the squared deviations

(b)1 mark

Find the sample standard deviation of the data. Give your answer as a whole number

Format: whole number