Mr. Duggal introduces the five M's of data analysis: minimum, maximum, range, mode, median, and mean. He explains the importance of ordering data from least to greatest and provides definitions and calculations for each concept. The video also discusses how outliers can affect the mean and when to use mean versus median.

What is the first step recommended when analyzing a data set?

• Identify the mode

• Compute the range

• Order the data from least to greatest

• Calculate the mean

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Which value represents the smallest number in a data set?

• Mode

• Median

• Maximum

• Minimum

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How do you remember the concept of 'maximum' in a data set?

• It is the average value

• It is the most frequent value

• It is associated with the letter 'X', a big letter

• It is the smallest value

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How is the range of a data set calculated?

• Subtract the minimum from the maximum

• Average all data points

• Subtract the maximum from the minimum

• Add the minimum and maximum

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What happens to the mode if all numbers in the data set appear only once?

• There is no mode

• All numbers are the mode

• Only the smallest number is the mode

• Only the largest number is the mode

Which of the following is true about the mode of a data set?

• It is always a single number

• It can never be the smallest number

• It can be more than one number

• It is always the largest number

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In a data set with an even number of elements, how is the median found?

• It is the sum of the two middle numbers

• It is the average of the two middle numbers

• It is the middle number

• It is the average of all numbers

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What is the mean of a data set?

• The difference between the highest and lowest values

• The most frequent value

• The middle value

• The average of all values

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What effect does an outlier have on the mean of a data set?

• It has no effect

• It increases the mean

• It decreases the mean

• It can either increase or decrease the mean

Why might the mean and median of a data set differ?

• Because the data set is ordered incorrectly

• Because all numbers in the data set are the same

• Because they are calculated the same way

• Due to the presence of outliers

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