Answer the questions below.(a) The 9 members of the swim team completed the following numbers of laps at today's practice: 76, 77, 82, 83, 85, 86, 88, 89, 91.Which measure should be used to summarize the data?MeanMedianMode(b) A car dealer has used cars for sale for the following amounts: $1000, $3400, $3600, $3800, $4000, $4100, $4200, $4300, $4500.Which measure should be used to summarize the data?MeanMedianMode(c) The readers of a children's magazine are asked to name their favorite animals.Which measure indicates the animal chosen most often?MeanMedianMode
Question
Answer the questions below.(a) The 9 members of the swim team completed the following numbers of laps at today's practice: 76, 77, 82, 83, 85, 86, 88, 89, 91.Which measure should be used to summarize the data?MeanMedianMode(b) A car dealer has used cars for sale for the following amounts: 3400, 3800, 4100, 4300, $4500.Which measure should be used to summarize the data?MeanMedianMode(c) The readers of a children's magazine are asked to name their favorite animals.Which measure indicates the animal chosen most often?MeanMedianMode
Solution
(a) The best measure to summarize the data for the swim team would be the Median. This is because the data is numerical and continuous, and the median gives the middle value which is a good measure of central tendency in this case.
(b) The best measure to summarize the data for the car dealer would also be the Median. This is because the data is numerical and continuous, and the median gives the middle value which is a good measure of central tendency in this case.
(c) The best measure to indicate the animal chosen most often by the readers of a children's magazine would be the Mode. This is because the data is categorical, and the mode gives the most frequently occurring value, which in this case would be the most popular animal.
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