The Following Stem-And-Leaf Display Shows the Number of Homeless Cats

question 23

Multiple Choice

The following stem-and-leaf display shows the number of homeless cats and dogs that had to be euthanized each year in a large city for the period 1985-2004.Use both the stemplot and timeplot to describe the distribution.

• A)The distribution of the number of cats and dogs that were euthanized is skewed to the right,and has several modes,with gaps in between.One mode is clustered between 87,000 and 90,000 euthanized,a second mode at 84,000,and a third mode with a cluster between 81,000 and 82,000.The timeplot shows that the number of animals euthanized has increased over the period 1985-2004,with a significant increase between 1994 and 1996.
• B)The distribution of the number of cats and dogs that were euthanized is bimodal.The upper cluster is between 87,000 and 90,000 euthanized,with a centre at around 88,400.The lower cluster is between 81,000 and 82,000 euthanized,with a centre at around 81,000.The timeplot shows that the number of animals euthanized has decreased over the period 1985-2004,with a significant decrease between 1994 and 1996.
• C)The distribution of the number of cats and dogs that were euthanized is bimodal.The upper cluster is between 87,000 and 90,000 euthanized,with a centre at around 88,400.The lower cluster is between 81,000 and 82,000 euthanized,with a centre at around 81,000.The timeplot shows that the number of animals euthanized has increased over the period 1985-2004,with a significant increase between 1994 and 1996.
• D)The distribution of the number of cats and dogs that were euthanized is bimodal.The upper cluster is between 89,000 and 90,000 euthanized,with a centre at around 88,400.The lower cluster is between 81,000 and 82,000 euthanized,with a centre at around 81,000.The timeplot shows that the number of animals euthanized has increased over the period 1985-2004,with a significant increase between 1994 and 1996.
• E)The distribution of the number of cats and dogs that were euthanized is skewed to the left,and has several modes,with gaps in between.One mode is clustered between 87,000 and 90,000 euthanized,a second mode at 84,000,and a third mode with a cluster between 81,000 and 82,000.The timeplot shows that the number of animals euthanized has increased over the period 1985-2004,with a significant increase between 1994 and 1996.

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