MATH 1280 - Unit 1 Exam/ Questions with
Certified Ans/ 2025.
The Customers Service Center of a large bank receive calls from customers. The number of
incoming calls between 8:00 AM and 8:10 AM in consecutive days were recorded. The number
of incoming calls during the working days of the month of September were 8, 10, 6, 7, 12, 7, 8,
7, 8, 6, 9, 4, 6, 14, 10, 10, 10, 10, 6, 10, 12, 7. The number of incoming calls during the working
days of the month of February were 9, 11, 14, 6, 4, 6, 7, 3, 3, 2, 5, 6, 6, 5, 6, 7, 5, 4, 3, 5. In light
of the description given, select the correct answer. The data used in the prompt above is best
described as:
a.A population.
b.A sample.
c.A parameter.
d.A statistic. - Answer: b.A sample
Page 1 of 5
, The Customers Service Center of a large bank receive calls from customers. The number of
incoming calls between 8:00 AM and 8:10 AM in consecutive days were recorded. The number
of incoming calls during the working days of the month of September were 8, 10, 6, 7, 12, 7, 8,
7, 8, 6, 9, 4, 6, 14, 10, 10, 10, 10, 6, 10, 12, 7. The number of incoming calls during the working
days of the month of February were 9, 11, 14, 6, 4, 6, 7, 3, 3, 2, 5, 6, 6, 5, 6, 7, 5, 4, 3, 5. In light
of the description given, select the correct answer. The location of the highest bar of the bar
plot for the month of September represents the fact:
a.5 incoming calls came during 6 days of the month of February.
b.6 incoming calls came during 10 days of the month of September.
c.6 incoming calls came during 5 days of the month of February.
d.10 incoming calls came during 6 days of the month of September. - Answer: d.10 incoming
calls came during 6 days of the month of September.
An automobile producing company operates car dealerships that sell its cars. In order to assess
the service costumers get at the dealerships, a team from the Customer Relationship
Department was assembled. The team was sent to 20 randomly selected dealerships. Each
dealership was visited once by the team for an entire working day. During a visit the team
interviewed all the customers that arrived at that dealership. One of the questions that each of
the customers were asked is: "Do you currently possess a car made by our company?" The
answers were marked down as "Yes", "No", or "Refuse to Answer", depending on the
customer's response.The population in this survey is:
a.The researchers that conducted the survey.
b.Customers that arrive at dealerships of the company.
c.The automobile producing company.
d.Owners of cars that are produced by the company. - Answer: b.Customers that arrive at
dealerships of the company.
Page 2 of 5
Certified Ans/ 2025.
The Customers Service Center of a large bank receive calls from customers. The number of
incoming calls between 8:00 AM and 8:10 AM in consecutive days were recorded. The number
of incoming calls during the working days of the month of September were 8, 10, 6, 7, 12, 7, 8,
7, 8, 6, 9, 4, 6, 14, 10, 10, 10, 10, 6, 10, 12, 7. The number of incoming calls during the working
days of the month of February were 9, 11, 14, 6, 4, 6, 7, 3, 3, 2, 5, 6, 6, 5, 6, 7, 5, 4, 3, 5. In light
of the description given, select the correct answer. The data used in the prompt above is best
described as:
a.A population.
b.A sample.
c.A parameter.
d.A statistic. - Answer: b.A sample
Page 1 of 5
, The Customers Service Center of a large bank receive calls from customers. The number of
incoming calls between 8:00 AM and 8:10 AM in consecutive days were recorded. The number
of incoming calls during the working days of the month of September were 8, 10, 6, 7, 12, 7, 8,
7, 8, 6, 9, 4, 6, 14, 10, 10, 10, 10, 6, 10, 12, 7. The number of incoming calls during the working
days of the month of February were 9, 11, 14, 6, 4, 6, 7, 3, 3, 2, 5, 6, 6, 5, 6, 7, 5, 4, 3, 5. In light
of the description given, select the correct answer. The location of the highest bar of the bar
plot for the month of September represents the fact:
a.5 incoming calls came during 6 days of the month of February.
b.6 incoming calls came during 10 days of the month of September.
c.6 incoming calls came during 5 days of the month of February.
d.10 incoming calls came during 6 days of the month of September. - Answer: d.10 incoming
calls came during 6 days of the month of September.
An automobile producing company operates car dealerships that sell its cars. In order to assess
the service costumers get at the dealerships, a team from the Customer Relationship
Department was assembled. The team was sent to 20 randomly selected dealerships. Each
dealership was visited once by the team for an entire working day. During a visit the team
interviewed all the customers that arrived at that dealership. One of the questions that each of
the customers were asked is: "Do you currently possess a car made by our company?" The
answers were marked down as "Yes", "No", or "Refuse to Answer", depending on the
customer's response.The population in this survey is:
a.The researchers that conducted the survey.
b.Customers that arrive at dealerships of the company.
c.The automobile producing company.
d.Owners of cars that are produced by the company. - Answer: b.Customers that arrive at
dealerships of the company.
Page 2 of 5
