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Elective Mathematics

Elective Mathematics · Quick practice · answer shown after each question

Statistics: location, spread and grouped data

Question 1 of 10

Question 1 of 10

Adding a constant to every value changes the standard deviation.

Question 2 of 10

Question 2 of 10

Find the variance and standard deviation of 2, 4, 4, 4, 5, 5, 7, 9.

Question 3 of 10

Question 3 of 10

Find the standard deviation of 2, 3, 4, 5, 6 to 2 decimal places.

Question 4 of 10

Question 4 of 10

Find the mean of 3, 5, 7, 9.

Question 5 of 10

Question 5 of 10

Find the standard deviation of 2, 4, 6, 8 to 2 decimal places.

Question 6 of 10

Question 6 of 10

The median of 3, 5, 7, 9 is 6.

Question 7 of 10

Question 7 of 10

The median of 7, 9, 11 is ___

Question 8 of 10

Question 8 of 10

The range is the highest minus the lowest.

Question 9 of 10

Question 9 of 10

The median of 6, 10, 14 is ___

Question 10 of 10

Question 10 of 10

The mode is

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.