Question

In a survey, respondents answered the question, "How many pets do you have now?" The results are shown in the table. Complete parts a through c below. No. pets Count 280 478 509 174 89 38 a. Is the variable, number of pets, categorical or quantitative? O A. B. Number of pets is a categorical variable. Its values are not numerical C. Number of pets is a quantitative variable. Its values are numerical Number of pets is a quantitative variable. Its values are not numerical D. Number of pets is a categorical variable. Its values are numerical. b. Is the variable, number of pets, discrete or continuous? O A. Number of pets is a discrete variable since it has an infinite continuum of possible values Number of pets is a continuous variable since it has a finite number of possible values. C. B. Number of pets is a discrete variable since it has a finite number of possible values. D. O Number of pets is a continuous variable since it has an infinite continuum of possible values. c. Add proportions and percentages to this frequency table. Round the proportions to the nearest thousandth and round the percentages to the nearest tenth No. pets 0 Count Proportion Percentage 478 509 174 89 38 0.305 0.119 0.204 0.217 0.074 0.038 0.016 0.008 0.019 30.6% 11.9% 20.4% 21.7% 7.4% 3.8% 1.6% 0.8% 1.9% 2 4 6

Answer 1

2)

a) number of siblings is a quantitative variable , its values are numerical

b) number of siblings is a discrete variable since it has a finite number of possible values

c)

No pets	Count	proportion	pecentage
0	932	0.309	30.9
1	446	0.148	14.8
2	774	0.257	25.7
3	416	0.138	13.8
4	297	0.099	9.9
5	62	0.021	2.1
6	42	0.014	1.4
7	16	0.005	0.5
8+	27	0.009	0.9