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Exam 3: Data Visualization and Summary Measures

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Question 31

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Using the following Boxplot, what is the star to the far right considered?

A) upper quartile mark
B) an outlier
C) a whisker
D) a deviation

E) B) and C)
F) A) and D)

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Question 32

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Carmen is a professor at a local university. In collecting data on her Introduction to Business course for a year, she wants to calculate the z-score for a student who scores a 84 on the final exam. The mean and the standard deviation scores on the exam are 70 and 6, respectively. Calculate the z-score.

A) 1.33
B) 2.33
C) 0.33
D) 2.67

E) B) and C)
F) A) and D)

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Question 33

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A study focused on the following numerical variables: Age, Income, and Candy (lbs). A bubble chart will help the researcher understand the relationship based on the location of the age and income plots and the size of the bubble based on candy consumption.

An easy way to convert relative frequencies into percentages is by dividing by 100.

The following table is the summary statistics for Scores. Calculate the Sharpe ratio of growth. Assume Rf = 4.

If the coefficient correlation is computed to be -0.15, this means the relationship between the two variables are _______.

Candice is preparing for her final exam in Statistics. She knows she needs an 68 out of 100 to earn an A overall in the course. Her instructor provided the following information to the students. - On the final, 200 students have taken it with a mean score of 60 and a standard deviation of 6. Assume the distribution of scores is bell-shaped. Calculate to see if a score of 68 is within one standard deviation of the mean.

Constructing a contingency table allows for a clear visualization of the relationship between two categorical variables.

A line chart displays the numerical variable of a series of data points connected by a line.

In a large data set, the arithmetic mean is the primary measure of the central location.

Converting observations into z-scores is also called doubling the observation.

Using the following histogram, how would the distribution be described?