2 Stats - Central Tendency

What are the two general classes of descriptive statistics?

• Measures of correlation and measures of variance.

• Measures of variability and measures of association.

• Measures of central tendency and measures of variance.

• Measures of distribution and measures of consistency.

What does central tendency refer to?

• The average distance of scores from the mean.

• The tendency of data to cluster around a central point.

• The range of variation in a dataset.

• The degree of asymmetry in a distribution.

What are the three measures of central tendency?

• Range, variance, and standard deviation.

• Mode, median, and mean.

• Skewness, kurtosis, and mean.

• Frequency, mode, and interquartile range.

Which measure of central tendency is the most frequently occurring score in a dataset?

• Median.

• Mean.

• Frequency.

• Mode.

What types of data can the mode be used with?

• Interval/ratio data only.

• Ordinal and nominal data only.

• Categorical data only.

• All data types.

How is the median calculated when there is an odd number of scores in the dataset?

• By finding the average of the two middle scores.

• It is the middle score when the data is ranked from lowest to highest.

• By identifying the mode.

• By subtracting the lowest score from the highest score.

How is the median calculated when there is an even number of scores in the dataset?

• By selecting the higher of the two middle scores.

• By calculating the difference between the two middle scores.

• By taking the average of the two middle scores when the data is ranked from lowest to highest.

• By choosing the middle score closest to the mean.

What types of data can the median be used with?

• Nominal data only.

• Interval/ratiodata only.

• Ordinal and interval/ratiodata.

• Nominal and ordinal data.

How is the mean calculated?

• By adding all scores and dividing by the total number of scores.

• By identifying the middle value in a ranked dataset.

• By finding the most frequent score in the data.

• By calculating the range of the dataset.

What types of data can the mean be used with?

• Nominal data only.

• Interval/ratiodata.

• Ordinal data only.

• All data types.