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.
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 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:
a.A population.
b.A sample.
c.A statistic.
d.None of the above. - Answer: c.A statistic
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.
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 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:
a.A population.
b.A sample.
c.A statistic.
d.None of the above. - Answer: c.A statistic
Page 2 of 5
