32 Questions
What is the formula for calculating the mean?
Mean = Sum of all entries / Number of entries
In the statement 'The average price of an ounce of gold is 21,000Php,' what type of average is being described?
Mean
Which measure of central tendency uses the exact value of each entry?
Mean
What is the average miles per gallon on the highway for the Zippy car?
39 miles
What is the minimum average score Linda needs in biology to graduate with a B?
80 to 89 average
What can be inferred about a population if the measure of skewness is positive?
The population is positively skewed
What is the mean of the given data set?
80
How is the mean of a sample distribution denoted?
$x - bar$
What is the symbol used to represent the mean of the entire population?
$N$
What is the median of the data set 19, 19, 27, 28, 18, 35?
23
How is the median calculated for an even number of data values?
$rac{ ext{Sum of middle two values}}{2}$
What does the notation $rac{ ext{Sum of all given x values}}{n}$ represent?
Mean of a sample distribution
Which symbol is used to represent the mean in a sample distribution?
$ar{x}$
What does the median represent in a distribution?
The center or middle score within a distribution
Which statistic represents the mean in a sample distribution?
$x - bar$
What should be done before finding the median in a distribution?
$ ext{Order the data from smallest to largest}$
Which measure of central tendency describes the most frequently occurring value in a set of data?
Mode
If a data set has outliers, which measure of central tendency is least affected by them?
Median
What is the measure of central location that is not influenced by extreme values or outliers in a data set?
Median
Which measure of central tendency is the sum of all data values divided by the number of data points in the set?
Mean
What measure of central location can be affected by extreme values and is not always a good representation of the center of the data set?
Mean
Which measure of central tendency provides the balance point of the data set but can be strongly affected by outliers?
Mean
What is the formula for calculating the mean of a sample distribution?
$X = \frac{\sum X}{N}$
What does the symbol $X$ represent in the formula for finding the mean?
Average score of a distribution
What does the symbol $\sum X$ represent in the formula for finding the mean?
Sum of all items/scores
Which measure of central tendency uses the exact value of each entry?
Mean
In a normal distribution, what is true about the mean, median, and mode?
They are all equal
Which of the following represents the center or middle score within a distribution?
$\sum fM$
What is the most frequent score within a distribution called?
$\sum f$
What is Mode in terms of a distribution?
The most frequent score within a distribution
What does $N$ represent in the formula for calculating the mean?
Total number of cases
What does Mean represent in terms of a distribution?
The average score of a distribution
Test your knowledge of measures of central tendency, variability, skewness, and kurtosis with this quiz. Explore mean, median, mode, and other important numerical measures.
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