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.
Key:
87 | 5 = 87,500 cats and dogs euthanized
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.
B)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 89,500.The lower cluster is between 81,000 and 82,000 euthanized,with a centre at around 81,200.
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 88,500.The lower cluster is between 81,000 and 83,000 euthanized,with a centre at around 81,200.
D)The distribution of the number of cats and dogs that were euthanized is skewed to the right,with a centre at around 85,500.The number of cats and dogs euthanized each year ranges from 81,200 to 90,200.
E)The distribution of the number of cats and dogs that were euthanized is unimodal,ranging from 81,200 to 90,200 euthanized.The centre of the distribution is at around 85,500.

Question

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. 
Key:
87 | 5 = 87,500 cats and dogs euthanized
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. 
B)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 89,500.The lower cluster is between 81,000 and 82,000 euthanized,with a centre at around 81,200. 
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 88,500.The lower cluster is between 81,000 and 83,000 euthanized,with a centre at around 81,200. 
D)The distribution of the number of cats and dogs that were euthanized is skewed to the right,with a centre at around 85,500.The number of cats and dogs euthanized each year ranges from 81,200 to 90,200. 
E)The distribution of the number of cats and dogs that were euthanized is unimodal,ranging from 81,200 to 90,200 euthanized.The centre of the distribution is at around 85,500.

Quizplus · Accepted Answer

The stem-and-leaf display shows that there are two distinct clusters or modes of data, one between 87,000 and 90,000 and another between 81,000 and 83,000. This makes the distribution bimodal. The centre of the upper cluster is around 88,500 and the centre of the lower cluster is around 81,200. Therefore, choice C is the best answer.

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