SCMA 3040 Unit 2 UPDATED ACTUAL
Questions and CORRECT Answers
20.3 days - CORRECT ANSWER - The proportion of patients who recovered from an infection
disease was recorded as follows: 10% 7 days, 30% 14 days, 20% 21 days, 40% 28 days. What was the
average days for recovery?
Mean=48, Median=52, Mode=40 - CORRECT ANSWER - The price of a selected stock over a 5
day period; 53, 40, 55, 52, and 40
90% - CORRECT ANSWER - The ogive chart below shows the distribution of weekly income for
part-time and full-time workers in an employment agency. Horizontal axis shows weekly income ($)
vertical axis shows cumulative % of workers who were paid below specific amount. What % of full-time
employees received less than $600?
$300 - CORRECT ANSWER - The ogive chart below shows the distribution of weekly income for
part-time and full-time workers in an employment agency. Horizontal axis shows weekly income ($)
vertical axis shows cumulative % of workers who were paid below specific amount. Half of the part-time
employees received less than how much in weekly income?
Median - CORRECT ANSWER - ___________________ is used when you want to report the
middle value in the distribution
74.8 - CORRECT ANSWER - The following grouped frequency distribution shows the test scores
of a sample of students. Frequency; 25, 18, 10, 7. The mean score is _____
48 students - CORRECT ANSWER - There were 240 students in a statistic class. The following
pie chart shows the distribution of students' performance on a course project. How many more students
were rated "good" than "poor"?
Wednesday - CORRECT ANSWER - The following stacked bar graph shows the proportion of
part-time workers, full-time workers and co-op students who are available to work in a given week.
Which day of the week has most part-time workers available to work?
, 80% - CORRECT ANSWER - The numbers of hours worked (per week) by 200 students are
shown below. Frequency; 20, 80, 60, 26, 14 = 200. What percentage of students worked for less than 30
hours?
26 hours - CORRECT ANSWER - The group frequency table below shows the number of hours
that selected employees work in a week for a social agency. Frequency; 5, 10, 18, 12, 10, 5 =60. A quarter
of the employees work for less than how many hours in a week?
25% - CORRECT ANSWER - The group frequency table below shows the number of hours that
selected employees work in a week for a social agency. Frequency; 5, 10, 18, 12, 10, 5 =60. What % of
the employees work at least 34 hours in a week?
An increase in leisure hours is associated with a decrease in stress levels - CORRECT ANSWER -
The relationship between leisure hours and stress level is visualized below. This means
______________________
It is a preferred measure when the distribution is skewed - CORRECT ANSWER - The following
statements are true about the mean, except ___________________
nominal scale - CORRECT ANSWER - The median cannot be applied to a data measured on
_____________________
29.03% - CORRECT ANSWER - The contigency table below shows the number of male and
female from various income groups in a survey. Female; 55, 18, 28 = 101. What % of medium income
residents are female?
8.4% - CORRECT ANSWER - A research project submitted by students from 3 academic
programs were rated as "excellent", "good", and "average". Below is the tabulation of the results. Total
125, 128, 47 = 300. What % of the research projects submitted by ECS students were rated as average?
Questions and CORRECT Answers
20.3 days - CORRECT ANSWER - The proportion of patients who recovered from an infection
disease was recorded as follows: 10% 7 days, 30% 14 days, 20% 21 days, 40% 28 days. What was the
average days for recovery?
Mean=48, Median=52, Mode=40 - CORRECT ANSWER - The price of a selected stock over a 5
day period; 53, 40, 55, 52, and 40
90% - CORRECT ANSWER - The ogive chart below shows the distribution of weekly income for
part-time and full-time workers in an employment agency. Horizontal axis shows weekly income ($)
vertical axis shows cumulative % of workers who were paid below specific amount. What % of full-time
employees received less than $600?
$300 - CORRECT ANSWER - The ogive chart below shows the distribution of weekly income for
part-time and full-time workers in an employment agency. Horizontal axis shows weekly income ($)
vertical axis shows cumulative % of workers who were paid below specific amount. Half of the part-time
employees received less than how much in weekly income?
Median - CORRECT ANSWER - ___________________ is used when you want to report the
middle value in the distribution
74.8 - CORRECT ANSWER - The following grouped frequency distribution shows the test scores
of a sample of students. Frequency; 25, 18, 10, 7. The mean score is _____
48 students - CORRECT ANSWER - There were 240 students in a statistic class. The following
pie chart shows the distribution of students' performance on a course project. How many more students
were rated "good" than "poor"?
Wednesday - CORRECT ANSWER - The following stacked bar graph shows the proportion of
part-time workers, full-time workers and co-op students who are available to work in a given week.
Which day of the week has most part-time workers available to work?
, 80% - CORRECT ANSWER - The numbers of hours worked (per week) by 200 students are
shown below. Frequency; 20, 80, 60, 26, 14 = 200. What percentage of students worked for less than 30
hours?
26 hours - CORRECT ANSWER - The group frequency table below shows the number of hours
that selected employees work in a week for a social agency. Frequency; 5, 10, 18, 12, 10, 5 =60. A quarter
of the employees work for less than how many hours in a week?
25% - CORRECT ANSWER - The group frequency table below shows the number of hours that
selected employees work in a week for a social agency. Frequency; 5, 10, 18, 12, 10, 5 =60. What % of
the employees work at least 34 hours in a week?
An increase in leisure hours is associated with a decrease in stress levels - CORRECT ANSWER -
The relationship between leisure hours and stress level is visualized below. This means
______________________
It is a preferred measure when the distribution is skewed - CORRECT ANSWER - The following
statements are true about the mean, except ___________________
nominal scale - CORRECT ANSWER - The median cannot be applied to a data measured on
_____________________
29.03% - CORRECT ANSWER - The contigency table below shows the number of male and
female from various income groups in a survey. Female; 55, 18, 28 = 101. What % of medium income
residents are female?
8.4% - CORRECT ANSWER - A research project submitted by students from 3 academic
programs were rated as "excellent", "good", and "average". Below is the tabulation of the results. Total
125, 128, 47 = 300. What % of the research projects submitted by ECS students were rated as average?
