Measures of Central Tendency
Math ⇒ Statistics and Probability
Measures of Central Tendency starts at 6 and continues till grade 12.
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See sample questions for grade 9
A class of 10 students scored the following marks in a test: 12, 15, 14, 13, 15, 16, 14, 13, 15, 14. What is the mode?
A data set consists of the following numbers: 8, 12, 15, 20, 25. If 10 is added to each value, what is the new mean?
A data set has the following values: 5, 7, 7, 8, 10, 12, 12, 12, 15. What is the mode?
A data set has the values: 10, 20, 30, 40, 50. What is the mean?
A class of 10 students scored the following marks in a test: 12, 15, 14, 13, 15, 16, 14, 13, 15, 14. What is the mode?
A data set consists of the following numbers: 8, 12, 15, 20, 25. If 10 is added to each value, what is the new mean?
A data set consists of the following numbers: 2, 4, 4, 6, 8, 10, 12, 14, 16, 18. If the value 100 is added to the data set, which measure of central tendency will change the most?
A data set contains the following values: 5, 7, 9, 11, 13, 15, 17, 19, 21, 23. What is the mean and how does it compare to the median?
Which measure of central tendency is most affected by extreme values (outliers)?
(1) Mean
(2) Median
(3) Mode
(4) All are equally affected
Which of the following is NOT a measure of central tendency?
(1) Mean
(2) Median
(3) Mode
(4) Range
Which of the following is NOT true about the median?
(1) It is affected by extreme values
(2) It divides the data into two equal parts
(3) It is the middle value when data is ordered
(4) It can be used for ordinal data
Which of the following is the best measure of central tendency for categorical data?
(1) Mean
(2) Median
(3) Mode
(4) None of these
Fill in the blank: The _______ is the only measure of central tendency that can be used with nominal data.
Fill in the blank: The _______ is the value that appears most frequently in a data set.
Fill in the blank: The _______ is the value that occurs most often in a data set.
Fill in the blank: The sum of all values divided by the number of values gives the _______.
True or False: The mean can be a value that does not appear in the data set.
True or False: The mean is always a whole number.
True or False: The mean, median, and mode are always equal in a perfectly symmetrical distribution.
True or False: The median is not affected by extreme values.
