Understanding Measures of Central Tendency - Video with 10?s

What is the range of a data set?

• The middle value of the data set

• Sum of all values divided by the number of values

• The most frequently occurring value

• Difference between the largest and smallest values

What is an outlier in a data set?

• The middle value

• A value significantly higher or lower than others

• The sum of all values

• The average value

How is the median calculated when the data set size is even?

• It is the sum of all numbers divided by their count

• It is the difference between the highest and lowest values

• It is the most frequently occurring number

• It is the average of the two middle numbers

In a data set, if the mode is 98, what does it imply?

• 98 is the average of all numbers

• 98 is the middle value

• 98 appears more frequently than any other number

• 98 is the only number in the data set

What must be true for a mean of 112 to be achieved if the current mean is below 112?

• No additional numbers are needed

• The next number must be exactly 112

• The next number must be less than 112

• The next number must be greater than 112

Which class likely has a higher mean based on the histogram data?

• Data is inconclusive

• Both are the same

• Sophomore

• Freshman

How does the median help in understanding data distribution?

• It indicates the most frequent value

• It shows the average value

• It represents the middle value, providing a central point

• It calculates the total spread of the data

What would not change if an outlier is removed from a time data set?

• The median of the time

• All of the above

• The mean of the time

• The range of the time

What is the effect of removing an outlier on the range of distances?

• Increases the range

• Makes the range zero

• Decreases the range

• Does not change the range

Which statistical measure is most affected by outliers?

• Range

• Median

• Mode

• Mean