1.3: numerical and categorical data
the list of survey questions in the activity earlier can help you complete these exercises.
1. the first survey question about travel time produces numerical data. identify two other questions that produce numerical data. for each, describe what was measured and its unit of measurement.
a. question #: ______ what was measured:
unit of measurement:
b. question #: ______ what was measured:
unit of measurement:
2. the second survey question about travel method produces categorical data. identify two other questions that produce categorical data. for each, describe what characteristic or feature was being studied.
a. question #: ______ characteristic being studied:
b. question #: ______ characteristic being studied:
3. think about the responses to these survey questions. do they produce numerical or categorical data? be prepared to explain how you know.
a. how many pets do you have?
b. how many years have you lived in this state?
c. what is your favorite band?
d. what kind of music do you like best?
e. what is the area code of your schools phone number?
f. where were you born?
g. how much does your backpack weigh?

Question

1.3: numerical and categorical data
the list of survey questions in the activity earlier can help you complete these exercises.
1. the first survey question about travel time produces numerical data. identify two other questions that produce numerical data. for each, describe what was measured and its unit of measurement.
  a. question #: ______ what was measured:
  unit of measurement:
  b. question #: ______ what was measured:
  unit of measurement:
2. the second survey question about travel method produces categorical data. identify two other questions that produce categorical data. for each, describe what characteristic or feature was being studied.
  a. question #: ______ characteristic being studied:
  b. question #: ______ characteristic being studied:
3. think about the responses to these survey questions. do they produce numerical or categorical data? be prepared to explain how you know.
  a. how many pets do you have?
  b. how many years have you lived in this state?
  c. what is your favorite band?
  d. what kind of music do you like best?
  e. what is the area code of your schools phone number?
  f. where were you born?
  g. how much does your backpack weigh?

Accepted Answer

# Brief Explanations:
1. a. A possible question could be "How many books do you own?" Here, the number of books is measured and the unit is "books". b. "How much money do you have in your wallet?" measures the amount of money with the unit "dollars" (or relevant currency).
2. a. "What is your gender?" studies the characteristic of gender. b. "What is your hair - color?" studies the hair - color characteristic.
3. a. Numerical data as it asks for a count of pets. b. Numerical data as it asks for a count of years. c. Categorical data as it asks for a band name which is a category. d. Categorical data as it asks for a type of music which is a category. e. Categorical data as an area code is a categorical identifier. f. Categorical data as a place of birth is a category. g. Numerical data as it measures weight with a unit like "pounds" or "kilograms".
# Answer:
1. a. Question #: How many books do you own? What was measured: Number of books. Unit of measurement: books
   b. Question #: How much money do you have in your wallet? What was measured: Amount of money. Unit of measurement: dollars (or relevant currency)
2. a. Question #: What is your gender? Characteristic being studied: Gender
   b. Question #: What is your hair - color? Characteristic being studied: Hair - color
3. a. Numerical data
   b. Numerical data
   c. Categorical data
   d. Categorical data
   e. Categorical data
   f. Categorical data
   g. Numerical data

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