E370 (1-3) QUESTIONS WITH CORRECTLY ANSWERED SOLUTIONS!!
The Graduate Management Admission Test (GMAT) is a standardized test used by schools to determine
the aptitude of individuals who are applying for MBA programs. The range of the GMAT score is 200-
800. Ryan has recently taken the exam and scored 780. This is an example of interval data. -
(answer)interval
A population consists of - (answer)all items of interest in a study
What is the scale of measurement of the distance between any two locations? - (answer)Ratio
The following distribution shows the frequency of daily revenue for an Italian restaurant in Bloomington.
Revenue Frequency
Under $2,000 10
$2,000 to under $4,000 18
$4,000 to under $6,000 26
$6,000 to under $8,000 8
$8,000 to under $10,000 14
Over $10,000 4 - (answer)
How many business days does this frequency distribution represent? - (answer)80
What is the probability that a randomly selected day will generate under $4,000 in revenue? -
(answer).35
The following chart shows the percentage of adults from various countries who admitted to texting
while driving in a recent survey. - (answer)Bar graph
The sum of squared deviation of a sample of 5 elements is determined to be 400. The variance of the
population - (answer)can be any value greater than zero
, E370 (1-3) QUESTIONS WITH CORRECTLY ANSWERED SOLUTIONS!!
The following table shows a frequency distribution of the number of MacBook Air laptops sold per day
at a particular Best Buy.
Number of Laptops Frequency
07
15
23
32
44
53
What is the mean number of MacBook Air laptops sold per day? - (answer)4
Which one of the following statements is true for a right-skewed distribution? - (answer)The mean is
greater than the median.
In the last week, Tesla stock price dived and its daily returns were below zero (ranging from -10% to -
5%). The standard deviation of the Nikola stock daily returns last week - (answer)must be positive
According to the Insurance Research Council in 2020, 20% of U.S. drivers are uninsured. A random
sample of seven drivers was selected. - (answer)Exhibit
What is the probability that four or more of these drivers are insured? - (answer)0.9667
Let Xbar be the number of drivers who are uninsured in the sample of 7 drivers. What is the probability
that three or more of these drivers are uninsured? - (answer)P(X≤7)−P(X≤3)
Assume now the Insurance Council Research finds that 15% of U.S. drivers are uninsured. Despite of this
finding, n, total number of trials will not be changed. - (answer)n, total number of trials
The Graduate Management Admission Test (GMAT) is a standardized test used by schools to determine
the aptitude of individuals who are applying for MBA programs. The range of the GMAT score is 200-
800. Ryan has recently taken the exam and scored 780. This is an example of interval data. -
(answer)interval
A population consists of - (answer)all items of interest in a study
What is the scale of measurement of the distance between any two locations? - (answer)Ratio
The following distribution shows the frequency of daily revenue for an Italian restaurant in Bloomington.
Revenue Frequency
Under $2,000 10
$2,000 to under $4,000 18
$4,000 to under $6,000 26
$6,000 to under $8,000 8
$8,000 to under $10,000 14
Over $10,000 4 - (answer)
How many business days does this frequency distribution represent? - (answer)80
What is the probability that a randomly selected day will generate under $4,000 in revenue? -
(answer).35
The following chart shows the percentage of adults from various countries who admitted to texting
while driving in a recent survey. - (answer)Bar graph
The sum of squared deviation of a sample of 5 elements is determined to be 400. The variance of the
population - (answer)can be any value greater than zero
, E370 (1-3) QUESTIONS WITH CORRECTLY ANSWERED SOLUTIONS!!
The following table shows a frequency distribution of the number of MacBook Air laptops sold per day
at a particular Best Buy.
Number of Laptops Frequency
07
15
23
32
44
53
What is the mean number of MacBook Air laptops sold per day? - (answer)4
Which one of the following statements is true for a right-skewed distribution? - (answer)The mean is
greater than the median.
In the last week, Tesla stock price dived and its daily returns were below zero (ranging from -10% to -
5%). The standard deviation of the Nikola stock daily returns last week - (answer)must be positive
According to the Insurance Research Council in 2020, 20% of U.S. drivers are uninsured. A random
sample of seven drivers was selected. - (answer)Exhibit
What is the probability that four or more of these drivers are insured? - (answer)0.9667
Let Xbar be the number of drivers who are uninsured in the sample of 7 drivers. What is the probability
that three or more of these drivers are uninsured? - (answer)P(X≤7)−P(X≤3)
Assume now the Insurance Council Research finds that 15% of U.S. drivers are uninsured. Despite of this
finding, n, total number of trials will not be changed. - (answer)n, total number of trials
