MATH 1280 INTRODUCTION TO
STATISTICS / QUESTIONS WITH DETAILED VERIFIED
ANSWERS / ALREADY GRADED A / 2025.
Terms in this set (182)
The population in this survey The target of the survey is to assess the service that costumers get
is: at the dealerships.
The correct answer is: Customers that arrive at dealerships of
the company.
The sample in this survey is: that arrive at the selected dealerships during the day of visit.
A parameter that may be The percentage of costumers that possess a car made by the
targeted by this survey is: company.
A statistic that may be used The percentage, among costumers that were interviewed,
to summarize the outcome of those that do not possess a car made by the company
of the survey is:
The data used to produce A sample.
the tables and plots is:
The average number of calls A parameter.
that arrived between 8:00
AM and 8:10 AM during the
working days of any month
is:
A statistic.
The average number of calls
recorded in the object "Feb"
is 5.85. The average in the
object "Sep" is 8.5. The
difference between these
two numbers is:
,In which of the months the February.
number of incoming calls
between 8:00 AM and 8:10
AM tends to be smaller?
The height of the fourth bar In 4 of the days of the month of February there were 5 incoming
from the left of the bar plot calls.
for the month of February
represents the fact that?
The location of the highest 10 incoming calls came during 6 days of the month of September.
bar of the bar plot for the
month of September
represents the fact that?
The next two questions refer
to the following relative
frequency table on hurricanes
that have made direct hits on
the U.S. between 1851 and
2004. Hurricanes are given a
strength category rating
based on the minimum wind
speed generated by the
storm.
(http://www.nhc.noaa.gov/
gifs/table5.gif )
(ALTERNATE DOWNLOAD
LINK)
0.2637
What is the relative
frequency of direct hits
that were category 2
hurricanes?
, The relative frequency of 0.337
direct hits that were AT
LEAST a category 3 storm is
Sixty adults with gum
disease were asked the
number of times per week
they used to floss before
their diagnoses. The
(incomplete) results are
shown below:
Flossing Frequency for
Adults with Gum Disease#
per WeekFreq.Relative
Freq.Cum. Relative
Freq.0270.4500 118 3
0.933363 710.0167
Fill in the blanks in the table
and answer the next two
question: (The numerical
answer that you provide
should be of the form
"0.xxxx", with 4 digits to the
right of the zero.)
The relative frequency that 0.05
flossed 6 times per week is:
0.55
The relative frequency that
flossed at least once a week
is:
STATISTICS / QUESTIONS WITH DETAILED VERIFIED
ANSWERS / ALREADY GRADED A / 2025.
Terms in this set (182)
The population in this survey The target of the survey is to assess the service that costumers get
is: at the dealerships.
The correct answer is: Customers that arrive at dealerships of
the company.
The sample in this survey is: that arrive at the selected dealerships during the day of visit.
A parameter that may be The percentage of costumers that possess a car made by the
targeted by this survey is: company.
A statistic that may be used The percentage, among costumers that were interviewed,
to summarize the outcome of those that do not possess a car made by the company
of the survey is:
The data used to produce A sample.
the tables and plots is:
The average number of calls A parameter.
that arrived between 8:00
AM and 8:10 AM during the
working days of any month
is:
A statistic.
The average number of calls
recorded in the object "Feb"
is 5.85. The average in the
object "Sep" is 8.5. The
difference between these
two numbers is:
,In which of the months the February.
number of incoming calls
between 8:00 AM and 8:10
AM tends to be smaller?
The height of the fourth bar In 4 of the days of the month of February there were 5 incoming
from the left of the bar plot calls.
for the month of February
represents the fact that?
The location of the highest 10 incoming calls came during 6 days of the month of September.
bar of the bar plot for the
month of September
represents the fact that?
The next two questions refer
to the following relative
frequency table on hurricanes
that have made direct hits on
the U.S. between 1851 and
2004. Hurricanes are given a
strength category rating
based on the minimum wind
speed generated by the
storm.
(http://www.nhc.noaa.gov/
gifs/table5.gif )
(ALTERNATE DOWNLOAD
LINK)
0.2637
What is the relative
frequency of direct hits
that were category 2
hurricanes?
, The relative frequency of 0.337
direct hits that were AT
LEAST a category 3 storm is
Sixty adults with gum
disease were asked the
number of times per week
they used to floss before
their diagnoses. The
(incomplete) results are
shown below:
Flossing Frequency for
Adults with Gum Disease#
per WeekFreq.Relative
Freq.Cum. Relative
Freq.0270.4500 118 3
0.933363 710.0167
Fill in the blanks in the table
and answer the next two
question: (The numerical
answer that you provide
should be of the form
"0.xxxx", with 4 digits to the
right of the zero.)
The relative frequency that 0.05
flossed 6 times per week is:
0.55
The relative frequency that
flossed at least once a week
is:
