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Test Bank for Practice of Statistics in the Life Sciences, Digital Update, 4e Brigitte Baldi, David Moore (All Chapters Download at the end of this File) (Missing Chapter, 16 and 25) Chapter 1
- Some variables that were recorded while studying diets of sharks are given below. Which of these variables is
- Amount of food eaten in a day by the shark being observed
- Age of the shark being observed
- Type of shark being observed
- Length of the shark being observed
not quantitative?
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
- A survey is conducted among students taking a statistics class. Several variables are measured in the survey.
- Number of credit hours taken during the quarter
- Gender
- Parents' annual income
- High school GPA
Which of the variables listed below is qualitative?
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
- Stream quality is based on the levels of many variables, including those listed below. Which of these
- Amount of phosphorus
- Number of distinct species present
- Amount of dissolved oxygen
- All of these answers are correct.
variables is quantitative?
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False 1 / 3
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
- During winter, red foxes hunt small rodents by jumping into thick snow cover. Researchers report that a
- The three variables reported are all quantitative.
- The three variables reported are all categorical.
- Two of variables reported are quantitative and one is categorical.
- Two of variables reported are categorical and one is quantitative.
hunting trip lasts, on average, 19 minutes and involves, on average, 7 jumps. In a surprising finding, they report that 79% of successful jumps are made in the northeast direction. Which of the following statements about these results is TRUE?
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
- A survey records many variables of interest to the researchers conducting the survey. The following variables
- Type of grain grown
- Number of acres owned
- Total farm income, before taxes, in 1993
- Number of children younger than age 12 on the farm
are some of the variables collected in a survey conducted by the USDA. Which of these variables is categorical?
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
- The EPA sends out a survey to learn about people's water-usage habits. Some of the variables to be analyzed
- How many times a day do you take a shower?
- Do you leave the water running when brushing your teeth?
- How many times a week do you water your lawn?
- None of these answers is correct.
are responses to the following questions. Which of these questions leads to categorical responses?
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
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- Which of the following is a discrete variable?
- Number of different toxins present in a fish
- Length of a fish
- Weight of a fish
- All of these answers are correct.
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
- Some variables were recorded while surveying plants in a wildlife area. Which of the following variables is
- Count of petals per flower
- Count of flowers per plant
- Plant height in centimeters
- Plant species
continuous?
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
- Some variables were recorded while surveying plants in a wildlife area. Which of the following variables is
- Count of petals per flower
- Whether the plant grows under the shade of another plant
- Plant height in centimeters
- Plant species
discrete?
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 2/8/2022 3:13 PM
DATE MODIFIED: 2/8/2022 3:13 PM
10. Here are records of eye color for a random sample of 103 individuals:
Eye color Number of individuals Blue 21 Green 7
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