17 Questions
What is the mean of the data set {1,3,6,7,2,3,5} with 7 observations and a sum of 27?
$3.9$
In the frequency distribution table, what is the total number of children?
1339
What is the median of the data set {5, 8, 9, 10, 28}?
9
What is the median of the data set {2, 6, 17, 19, 20, 21, 27}?
19.5
What was the median of Nick's quiz scores during the first marking period?
91
What is the total of the Frequency*Y (fY) column in the frequency distribution table?
3526
What is the median of the given swim times: 2.6, 7.2, 3.5, 9.8, and 2.5 minutes?
3.5 minutes
Which of the following statements about the mode is true?
There can be multiple modes in a dataset.
Given the ages: 34, 24, 56, 52, 21, 44, 64, 34, 42, 46, what is the mean age?
41.7 years
What is the mode of the following scores: 7, 13, 18, 24, 9, 3, 18?
18
If the median of the ages 21, 24, 34, 34, 42, 44, 46, 52, 56, 64 is $\frac{42 + 44}{2}$, what is the value of the median?
43 years
Which of the following is the most common measure of central location in a sample?
Arithmetic Mean
What does the Greek letter '' (sigma) represent in the formulas provided?
The sum of all the scores
What is the formula for calculating the sample mean?
$ar{X} = rac{1}{n} ext{sum } x_i$
What is the formula for calculating the population mean?
$ar{X} = rac{ ext{sum } x_i}{N}$
What is the value of the mean swimming time, rounded to the nearest tenth?
5.1 minutes
Which of the following is not a measure of central tendency?
Standard Deviation
Test your knowledge on central tendency measures including mean, median, and mode. Learn about how these values describe the average or typical data point in a distribution.
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