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Oak National Academy
12 questions
Which of these statements defines the median?
Calculate the mean for this data set.
Match the summary statistic to its value.
Which of these statements is true for this dot plot?
First calculate the mean for this dot plot, then select the correct statements.
Without carrying out any calculations select which of these statements are likely to be true for this dot plot.
One data point on this dot plot was incorrectly typed in. After the data point is modified and corrected, Andeep notices the mode has changed. Which of these statements must be true?
The mean of this dot plot is currently 15.75. A new data point is collected and added to the data set. Laura re-calculates the mean and notices it has decreased. What could the new data point be?
The mean of this dot plot is 15.75. A data point is no longer relevant and removed from the data set. Sam re-calculates the mean and notices it has decreased. What could the new data point be?
A data point is removed from this dataset, as it is no longer relevant to an investigation. Which of the following are possible outcomes after the data point is removed?
Match each possible change to the data set to the correct description of its impact on the median.
Match each possible change to the data set to the correct description of its impact on the mean.
