Math 1280-01 UOP Statistics Intro: Questions With
Fully Explained Solutions
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. In which of the
months the number of incoming calls between 8:00 AM and 8:10 AM tends to
be smaller?
a.September
b.February
c.The number of incoming calls in both months is about the same.
d.One cannot answer the question based on the given data. Correct Answer
- b. February
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. A parameter that may be
targeted by this survey is:
a.The percentage of costumers that possess a car made by the company.
b.Customers that arrive at the selected dealerships during the day of visit.
c."Yes", "No", or "Refuse to Answer".
d.Owners of cars that are produced by the company Correct Answer -
a.The percentage of costumers that possess a car made by the company.
A Lake Tahoe Community College instructor is interested in the mean number
of days Lake Tahoe Community College math students are absent from class
,during a quarter. The instructor's sample produces a mean number of days
absent of 3.5 days. This value is an example of:
a.parameter
b.data
c.statistic
d.variable Correct Answer - c.statistic
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 height of the
fourth bar from the left of the bar plot for the month of February represents
the fact:
a.In 4 of the days of the month of February there were 5 incoming calls.
b.In 5 of the days of the month of February there were 4 incoming calls.
c.In 4 of the days of the month of February there were 2 incoming calls.
d.In 2 of the days of the month of February there were 4 incoming calls
Correct Answer - a.In 4 of the days of the month of February there were 5
incoming calls.
A study was carried out to determine the age, number of times per week, and
the duration (amount of time) of residents using a local park in San Antonio,
Texas. The first house in the neighborhood around the park was selected
randomly, and then the resident of every eighth house in the neighborhood
around the park was interviewed. The appropriate sampling method that
might have been used is:
a.simple random
b.systematic
c.stratified
d.cluster Correct Answer - b.systematic
, We are interested in the number of years' students in a particular elementary
statistics class have lived in California. The information in the following table
is from the entire section.
a.19
b.19.5
c.14 and 20
d.22.65 Correct Answer - a. 19
Use the graph to answer the following question: One hundred eleven people
who shopped in a special t-shirt store were asked the number of t-shirts they
own costing more than $19 each.
The percentage of people who own at most three t-shirts costing more than
$19 each is approximately:
a.21
b.59
c.41
d.Cannot be determined Correct Answer - c. 41
In a right-skewed distribution, which is greater?
a.the mean
b.the median
c.the mode Correct Answer - a.the mean
Refer to the figure below to determine whether the below question is true or
false.
The standard deviation for graph b is larger than the standard deviation for
graph a.
Select one:
True
False Correct Answer -
In a left-skewed distribution, which is greater?
a.the mean
Fully Explained Solutions
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. In which of the
months the number of incoming calls between 8:00 AM and 8:10 AM tends to
be smaller?
a.September
b.February
c.The number of incoming calls in both months is about the same.
d.One cannot answer the question based on the given data. Correct Answer
- b. February
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. A parameter that may be
targeted by this survey is:
a.The percentage of costumers that possess a car made by the company.
b.Customers that arrive at the selected dealerships during the day of visit.
c."Yes", "No", or "Refuse to Answer".
d.Owners of cars that are produced by the company Correct Answer -
a.The percentage of costumers that possess a car made by the company.
A Lake Tahoe Community College instructor is interested in the mean number
of days Lake Tahoe Community College math students are absent from class
,during a quarter. The instructor's sample produces a mean number of days
absent of 3.5 days. This value is an example of:
a.parameter
b.data
c.statistic
d.variable Correct Answer - c.statistic
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 height of the
fourth bar from the left of the bar plot for the month of February represents
the fact:
a.In 4 of the days of the month of February there were 5 incoming calls.
b.In 5 of the days of the month of February there were 4 incoming calls.
c.In 4 of the days of the month of February there were 2 incoming calls.
d.In 2 of the days of the month of February there were 4 incoming calls
Correct Answer - a.In 4 of the days of the month of February there were 5
incoming calls.
A study was carried out to determine the age, number of times per week, and
the duration (amount of time) of residents using a local park in San Antonio,
Texas. The first house in the neighborhood around the park was selected
randomly, and then the resident of every eighth house in the neighborhood
around the park was interviewed. The appropriate sampling method that
might have been used is:
a.simple random
b.systematic
c.stratified
d.cluster Correct Answer - b.systematic
, We are interested in the number of years' students in a particular elementary
statistics class have lived in California. The information in the following table
is from the entire section.
a.19
b.19.5
c.14 and 20
d.22.65 Correct Answer - a. 19
Use the graph to answer the following question: One hundred eleven people
who shopped in a special t-shirt store were asked the number of t-shirts they
own costing more than $19 each.
The percentage of people who own at most three t-shirts costing more than
$19 each is approximately:
a.21
b.59
c.41
d.Cannot be determined Correct Answer - c. 41
In a right-skewed distribution, which is greater?
a.the mean
b.the median
c.the mode Correct Answer - a.the mean
Refer to the figure below to determine whether the below question is true or
false.
The standard deviation for graph b is larger than the standard deviation for
graph a.
Select one:
True
False Correct Answer -
In a left-skewed distribution, which is greater?
a.the mean
