Standard Deviation of a Sample
Worksheet
Worksheet
To explore standard deviation and relevant notation
Calculate the standard deviation of a sample
Interpret the value of the standard deviation
Apply to the normal distribution of the data set
mean of a sample
Population, sample, mu (𝛍), x-bar, sigma, grouped data, standard deviation (s), variance (s2), spread, notation
Video - Standard Deviation (by hand)
worksheet below
Find standard deviation only
The following data represents the percentage score on a SAC in further maths of 20 students:
12, 14, 87, 23, 76, 64, 100, 22, 74, 78, 92, 40, 57, 48, 39, 65, 78, 66, 68, 81
a) Is this a population or a sample?
b) Input in your CAS and find the:
mean
sample standard deviation
population standard deviation
2017 Exam 2
Click the link above and select the scaling report pdf file. You will be able to see the mean and standard deviation of all the VCE subjects from the 2018 student population.
a) List your subjects
b) Compare the mean and standard deviation of each.
c) Comment on the statement - 'English is the most difficult subject to achieve a high score in' - use data to support your comment.