Final Exam_PhD_50Q_OK

1. Which is the central tendency?

• Mean, Medina, SD

• Mean, Median, SE

• Mean, Median, Mode

• Mean, Mode, SE

• Mean, Mode, CV

1. What is the mode in a data set?

• The range of the data

• The average value

• The middle value when sorted

• The sum of all values

• The value that appears most frequently

1. Which measure of central tendency is least affected by outliers?

• Mean

• Median

• Mode

• Range

• Variance

In a normal distribution, which measure of central tendency is equal to the mean?

• Standard Deviation

• Mode

• Variance

• Median

• All of the above

1. What is the median in a data set?

• The value that appears most frequently

• The average value

• The middle value when sorted

• The sum of all values

• The range of the data

In a skewed distribution, which measure of central tendency is typically affected the most?

• Variance

• Mode

• Median

• Standard Deviation

• Mean

1. Which measure of central tendency can be used for categorical data?

• Median

• Range

• Mode

• Mean

• Standard Deviation

In a normal distribution, what percentage of data falls within one standard deviation of the mean?

• 95%

• 99%

• 68%

• 100%

• 50%

Which measure of central tendency is most appropriate for ordinal data?

• Standard Deviation

• Mode

• Mean

• Variance

• Median

What is the primary purpose of using measures of central tendency?

• To compare different data sets

• To calculate variability

• To summarize a set of data

• To identify outliers

• To determine the distribution shape