STA 013 MIDTERM 1 QUESTIONS WITH VERIFIED
ANSWERS
The population is - Answers - the complete collection of all elements.
What is an example of quantitative data? - Answers - Weights of people
What is not an example of continuous data? - Answers - number of students in an
algebra class
Questions on a midterm are scored with integers 1-5 with 1 being strongly disagree and
5 being strongly agree. This is an example of what kind of measurement? - Answers -
Ordinal
At a security checkpoint to a government facility, every 10th individual was more
thoroughly searched than the others. What type of sampling is this? - Answers -
Systematic
A sample value that lies very far away from
the majority of the other sample values is? - Answers - an Outlier
A table that lists data values along with
their counts is? - Answers - A frequency distribution
A bar graph where the horizontal scale represents the classes of quantitative data
values and the vertical scale represents the frequencies is called - Answers - A
histogram
Which measure of center is the only one that
can be used with data at the nominal level of
measurement? - Answers - Mode
Which of the following measures of center is
not affected by outliers? - Answers - Median
Find the mode for the given sample data.
79, 25, 79, 13, 25, 29, 56, 79 - Answers - 79
Which is not true about the variance? - Answers - It is not affected by outliers
A bag contains 6 red marbles, 3 blue marbles, and 7 green marbles. If a marble is
randomly selected from the bag, what is the probability
, that it is blue? - Answers - 3/16
A bag contains 8 red marbles, 4 blue marbles, and 1 green marble. Find P (not blue). -
Answers - 9/13
If A and B are dependent events, then P(A and B) is ? - Answers - P(A) •P( B | A )
A company manufactures glass bottles. The probability that a randomly selected bottle
is defective is 0.002. What is the probability that a randomly selected bottle is not
defective? - Answers - 0.998
Identify the given variable as being discrete or continuous: the number of oil spills off
the Alaskan coast. - Answers - discrete
In a study of births from New York State, data were collected from 4 hospitals and
coded as follows:
(1) Albany Medical Center
(1438) Bellevue Hospital Center
(66) Olean General Hospital
(413) Strong Memorial Hosptial
Does it make sense to calculate the mean of the numbers 1, 1438, 66, and 413?
Yes or No? - Answers - No
In a study of births from New York State, data were collected from 4 hospitals and
coded as follows:
(1) Albany Medical Center
(1438) Bellevue Hospital Center
(66) Olean General Hospital
(413) Strong Memorial Hospital
What is the level of measurement for the numbers 1, 1438, 66, and 413? - Answers -
Nominal
In a study of births from New York State, data were collected from 4 hospitals and
coded as follows:
(1) Albany Medical Center
(1438) Bellevue Hospital Center
(66) Olean General Hospital
(413) Strong Memorial Hospital
Birth weights are given in grams. What kind of data is this? Continuous or Discrete -
Answers - Continuous
In a study of births from New York State, data were collected from 4 hospitals and
coded as follows:
(1) Albany Medical Center
(1438) Bellevue Hospital Center
ANSWERS
The population is - Answers - the complete collection of all elements.
What is an example of quantitative data? - Answers - Weights of people
What is not an example of continuous data? - Answers - number of students in an
algebra class
Questions on a midterm are scored with integers 1-5 with 1 being strongly disagree and
5 being strongly agree. This is an example of what kind of measurement? - Answers -
Ordinal
At a security checkpoint to a government facility, every 10th individual was more
thoroughly searched than the others. What type of sampling is this? - Answers -
Systematic
A sample value that lies very far away from
the majority of the other sample values is? - Answers - an Outlier
A table that lists data values along with
their counts is? - Answers - A frequency distribution
A bar graph where the horizontal scale represents the classes of quantitative data
values and the vertical scale represents the frequencies is called - Answers - A
histogram
Which measure of center is the only one that
can be used with data at the nominal level of
measurement? - Answers - Mode
Which of the following measures of center is
not affected by outliers? - Answers - Median
Find the mode for the given sample data.
79, 25, 79, 13, 25, 29, 56, 79 - Answers - 79
Which is not true about the variance? - Answers - It is not affected by outliers
A bag contains 6 red marbles, 3 blue marbles, and 7 green marbles. If a marble is
randomly selected from the bag, what is the probability
, that it is blue? - Answers - 3/16
A bag contains 8 red marbles, 4 blue marbles, and 1 green marble. Find P (not blue). -
Answers - 9/13
If A and B are dependent events, then P(A and B) is ? - Answers - P(A) •P( B | A )
A company manufactures glass bottles. The probability that a randomly selected bottle
is defective is 0.002. What is the probability that a randomly selected bottle is not
defective? - Answers - 0.998
Identify the given variable as being discrete or continuous: the number of oil spills off
the Alaskan coast. - Answers - discrete
In a study of births from New York State, data were collected from 4 hospitals and
coded as follows:
(1) Albany Medical Center
(1438) Bellevue Hospital Center
(66) Olean General Hospital
(413) Strong Memorial Hosptial
Does it make sense to calculate the mean of the numbers 1, 1438, 66, and 413?
Yes or No? - Answers - No
In a study of births from New York State, data were collected from 4 hospitals and
coded as follows:
(1) Albany Medical Center
(1438) Bellevue Hospital Center
(66) Olean General Hospital
(413) Strong Memorial Hospital
What is the level of measurement for the numbers 1, 1438, 66, and 413? - Answers -
Nominal
In a study of births from New York State, data were collected from 4 hospitals and
coded as follows:
(1) Albany Medical Center
(1438) Bellevue Hospital Center
(66) Olean General Hospital
(413) Strong Memorial Hospital
Birth weights are given in grams. What kind of data is this? Continuous or Discrete -
Answers - Continuous
In a study of births from New York State, data were collected from 4 hospitals and
coded as follows:
(1) Albany Medical Center
(1438) Bellevue Hospital Center
