Illustrative Math - Algebra 1 - Unit 1- Lesson 10

Select all the distribution shapes for which it is most often appropriate to use the mean.

• bell-shaped
• bimodal
• skewed
• symmetric
• uniform

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The number of writing instruments in some teachers' desks is displayed in the dot plot. Which is greater, the mean or the median? Explain your reasoning using the shape of the distribution.

• The Mean Is Greater.
• The Median is Greater.

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A student has these scores on their assignments. The teacher is considering dropping a lowest score. 0, 40, 60, 70, 75, 80, 85, 95, 95, 100What effect does eliminating the lowest value, 0, from the data set have on the mean and median?

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For the data 2, 2, 4, 4, 5, 5, 6, 7, 9, 15When the maximum, 15, is removed from the data set, what is the five-number summary?

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The box plot summarizes the test scores for 100 students: Which term best describes the shape of the distribution?

• bell-shaped
• uniform
• skewed
• symmetric

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The histogram represents the distribution of lengths, in inches, of 25 catfish caught in a lake. If possible, find the mean. If not possible, explain why not.

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The histogram represents the distribution of lengths, in inches, of 25 catfish caught in a lake. If possible, find the median. If not possible, explain why not.

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The histogram represents the distribution of lengths, in inches, of 25 catfish caught in a lake. Were any of the fish caught 12 inches long?

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The histogram represents the distribution of lengths, in inches, of 25 catfish caught in a lake. Were any of the fish caught 19 inches long?

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