Exploring Measures of Central Tendency: Mean, Median, and Mode

What are the three common measures of central tendency discussed in the video?

• Mean, Median, Variance

• Median, Mode, Standard Deviation

• Mean, Mode, Range

• Mean, Median, Mode

Why are mean, median, and mode collectively important in data analysis?

• They identify the spread of data

• They show the frequency of data points

• They determine the data clustering around the center

• They calculate the variability of data

How is the mean calculated from a dataset?

• Find the middle value of the dataset

• Sum all data points and divide by the number of points

• Subtract the smallest data point from the largest

• Identify the most frequently occurring number

What is the median in a dataset with an odd number of entries?

• The difference between the highest and lowest values

• The most frequent data point

• The middle value when data is ordered

• The average of all data points

How do you find the median in a dataset with an even number of entries?

• Sum all numbers and divide by two

• Average the two middle numbers

• Choose the lowest number

• Choose the highest number

Why is the median preferred over the mean in the presence of outliers?

• It is easier to calculate

• It is less affected by extreme values

• It shows the range of the data

• It represents the most frequent value

What does the mode represent in a dataset?

• The average of all data points

• The middle value of the dataset

• The most frequently occurring value

• The difference between the highest and lowest values

Can the mode be a non-numerical category?

• Only if the data is uniformly distributed

• No, it must be a numerical value

• Only in the presence of outliers

• Yes, it can represent categories

What is an example of using the mode with categorical data?

• Calculating average income

• Determining the most common eye color

• Finding the middle salary

• Calculating the range of ages

Why might the median be more informative than the mean when looking at housing prices?

• It is unaffected by extremely high prices

• It identifies the least expensive house

• It shows the total number of houses

• It calculates the average price