Compare Dot Plots

What is an outlier?

• A data point that is significantly different from the other data points in a set, often lying far away from the rest of the values.

• A data point that is exactly the same as the mean of the dataset.

• A data point that is the median of the dataset.

• A data point that is the most frequently occurring value in the dataset.

What is the mode of a data set?

• The value that appears most frequently in a data set.

• The average of all values in a data set.

• The middle value when the data set is ordered.

• The highest value in a data set.

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How do you interpret a dot plot with two peaks?

• It indicates a normal distribution of data.

• It suggests that there may be two different groups or categories.

• It shows that the data is skewed to the right.

• It means that the data has no variability.

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Why is it important to analyze outliers?

• They provide additional data points for analysis.

• They can skew the results and affect the overall interpretation of the data.

• They are always errors in the data collection process.

• They help in identifying trends in the data.

What is a dot plot?

• A type of graph that uses bars to represent data.

• A statistical chart that consists of data points plotted on a simple scale, typically using dots to represent the frequency of values.

• A method of organizing data in a table format.

• A visual representation of data using lines and curves.

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What is the interquartile range (IQR)?

• The average of the first and third quartiles.

• The difference between the first quartile (Q1) and the third quartile (Q3) and measures the middle 50% of the data.

• The range of the entire dataset from the minimum to the maximum value.

• The median of the dataset.

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What is the difference between the medians of two data sets?

• The difference between the medians is calculated by subtracting the median of one data set from the median of the other.

• The difference between the medians is found by averaging the two medians.

• The difference between the medians is the sum of the two medians.

• The difference between the medians is determined by multiplying the two medians.

What is the significance of comparing spreads in data sets?

• It helps to understand the central tendency of the data.

• It indicates how much the values differ from each other.

• It determines the mean of the data set.

• It shows the relationship between two variables.

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How do you calculate the mean of a data set?

• Add up all the data points and divide by the number of data points.

• Multiply all the data points together and divide by the number of data points.

• Subtract the smallest data point from the largest and divide by two.

• Take the median of the data points.

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How do you compare the centers of two data sets?

• By looking at the range of each data set

• By examining the mode of each data set

• By looking at the median or mean of each data set

• By calculating the standard deviation of each data set

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