MATH 255N WEEK 1 ASSIGNMENT, VARIABLES AND MEASURES OF DATA

MATH 255N WEEK 1 ASSIGNMENT, VARIABLES AND
MEASURES OF DATA


1. Which of the following best describes the term explanatory variable?


Select the correct answer below:


the dependent variable in an experiment

a value or component of the independent variable applied in an experiment

a variable that has an effect on a study even though it is neither an independent nor a dependent variable

the independent variable in an experiment



2. Which of the following best describes the term qualitative?


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a numerical characteristic of the sample

the type of data that is the result of measuring

the type of data that is the result of counting

an attribute whose value is indicated by a label

3. A zoologist measures the birthweight of each cub in a litter of lions. What is the level of
measurement of the data?


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nominal
ordinal
interval
ratio

, 4. Margaret is investigating if gender has any effect on political party associations. What is the
response variable?


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political party associations

gender

the number of people that are being studied

none of the above

5. Timothy is collecting data on number of dental cavities. What type of data is this?


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qualitative data
discrete quantitative data
continuous quantitative data
none of the above

6. To determine whether or not number of siblings influences grade point average, Charles has
designed a survey. What is the explanatory variable?


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number of siblings
grade point average
the number of people surveyed
none of the above


7. What is the type of quantitative data that is the result of measuring?


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qualitative
statistic
discrete
continuous