ED106-Measures of Central Tendency and Dispersion Quiz

What is the primary purpose of measures of central tendency?

• To describe the spread of data

• To determine the lowest score

• To calculate the highest score

• To identify the central position within a set of data

Which of the following is NOT a measure of central tendency?

• Range

• Mode

• Median

• Mean

What is the mean of the following scores: 70, 72, 75, 77, 78, 80, 84, 87, 90, 92?

• 80.5

• 78.5

• 85.0

• 75.0

How is the median determined in a set of scores?

• By identifying the most frequent score

• By finding the middle score when arranged in order

• By calculating the highest score

• By averaging all scores

In a negatively skewed distribution, where do most scores tend to be?

• At the lower end

• At the mode

• At the mean

• At the median

What does a positively skewed distribution indicate about student performance?

• Scores are clustered around the mean

• Most students performed well

• Most students struggled

• Scores are evenly distributed

Which measure of central tendency is least affected by extreme scores?

• Mean

• Median

• Mode

• Range

What is the definition of range in statistics?

• The most frequently occurring score

• The middle score in a data set

• The average of all scores

• The difference between the highest and lowest scores

If the mean is equal to the median and the median is equal to the mode, what type of distribution is present?

• Bimodal distribution

• Negatively skewed

• Normal distribution

• Positively skewed

What is the mode of the following data set: 14, 35, 45, 55, 55, 56, 56, 65, 87, 89?

• 45

• 14

• 56

• 55