Practice Test

Question 9 • Concepts in Probability and Statistics

Which dot plot is symmetric?

Answer

Number of Correct Answers on the Quiz Image with description A dot plot is titled Number of Correct Answers on the Quiz. The number line goes from zero to 5 by ones. There is one dot above zero. There are three dots above 1. There are four dots above 2. There are seven dots above 3. There are eight dots above 4. There are five dots above 5.

Number of Correct Answers on the Quiz Image with description A dot plot is titled Number of Correct Answers on the Quiz. The number line goes from zero to 5 by ones. There are eight dots above zero. There are seven dots above 1. There are six dots above 2. There are five dots above 3. There are four dots above 4. There are three dots above 5.

Number of Correct Answers on the Quiz Image with description A dot plot is titled Number of Correct Answers on the Quiz. The number line goes from zero to 5 by ones. There are two dots above zero. There are four dots above 1. There are eight dots above 2. There are eight dots above 3. There are two dots above 4. There are four dots above 5.

Number of Correct Answers on the Quiz Image with description A dot plot is titled Number of Correct Answers on the Quiz. The number line goes from zero to 5 by ones. There are three dots above zero. There are six dots above 1. There are eight dots above 2. There are eight dots above 3. There are six dots above 4. There are three dots above 5.

Explanation

A dot plot is symmetric when the number of dots at values the same distance from the center matches. In choice D, the counts at 0 and 5 are both 3, at 1 and 4 are both 6, and at 2 and 3 are both 8. Therefore, the dot plot is symmetric.

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