Here are the survival times (in days) of 46 guinea pigs that were injected with a bacterial?

by LHG Creative Photography

Here are the survival times (in days) of 46 guinea pigs that were injected with a bacterial?1. Here are the survival times (in days) of 46 guinea pigs that were injected with a bacterial infection in a medical study
43 45 53 56 56 57 58 66 67 73
74 79 80 80 81 81 81 82 83 83
84 88 91 92 92 97 99 99 100 101
102 103 107 109 114 121 126 137 139 145
156 174 179 191 211 243

Which of these descriptive numbers for the guinea pig data is not measured in days?
Answer
A. the mean survival time
B. the standard deviation of the survival times
C. the correlation between survival time and age of the animal
D. the median survival time
E. both (b) and (c)

2. Here are the survival times (in days) of 46 guinea pigs that were injected with a bacterial infection in a medical study

43 45 53 56 56 57 58 66 67 73
74 79 80 80 81 81 81 82 83 83
84 88 91 92 92 97 99 99 100 101
102 103 107 109 114 121 126 137 139 145
156 174 179 191 211 243

To display the pattern of the survival times, what type of graph would you make?
Answer
A. a stemplot
B. a scatterplot
C. a line graph
D. a pie chart
E. Either a stemplot or a scatterplot would work well

3. To display the relationship between per capita wine consumption and heart disease death rates per 100,000 people, in each of 29 countries, a good choice of a graph would be a(n)
Answer
A. angiogram
B. boxplot
C. histogram
D. line graph
E. scatterplot

4. You calculate the correlation between height and weight for a simple random sample of 50 students from your college. Another student does the same for simple random sample of 200 students from the college

The other student should get
Answer
A. a correlation greater than one
B. a correlation less than minus one
C. a higher value for the correlation
D. a lower value for the correlation
E. about the same value for the correlation

5. Which of these is not true of the correlation r between the lengths in inches and weights in pounds of a sample of brook trout?
Answer
A. r must take a value between -1 and 1
B. r is measured in inches
C. if longer trout tend to also be heavier, than r>0
D. r would not change if we measured these trout in centimeters instead of inches
E. both (b) and (d)

6. Which of these is not true of the standard deviation s of the lengths in inches of a sample of brook trout?
Answer
A. s must take a value between -1 and 1
B. s is measured in inches
C. s would not change if we measured these trout in centimeters instead of inches
D. Both (b) and (c)
E. Both (a) and (c)

Answer by some teenager
1. C
2. E
3. E i think
4. E
5. E
6. E

Give your answer to this question below! Learn about heart disease symptoms, risk factors and prevention, as well as information on heart attack, heart failure, and heart health.

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