Deck 5: Exploring Data With Graphs

Question 1

What type of graph is shown below?

A) Frequency polygon
B) Stacked histogram
C) Simple histogram
D) Frequency distribution

Answer 1

Simple histogram

Question 2

What statement best describes what is shown in the graph below?

A) There were 46 hospital visitors visiting during the week.
B) There were 48 visitors to the hospital in a week.
C) Day 1 is the most popular day for visiting.
D) Day 6 has the least number of visitors.

Answer 2

Day 6 has the least number of visitors.

Question 3

Which of the following does a box-whisker plot not display

A) The range
B) The interquartile range
C) The lower quartile
D) The mean

Answer 3

The mean

Question 4

For which of the following sets of variables would you not use a scatterplot in order to show your data?

A) An individual's rating of pain on a scale and the amount of analgesia taken
B) Raised body temperature and level of depression
C) Numbers of children having measles immunization and incidence of measles illness
D) The number of people attending a nursing home on a Saturday

Question 5

I collected some data about how much buyers of my book liked it (on a scale of 1 = it's utter rubbish to 10 = I never read anything else). I ended up with a sample of 15,467 people. When I looked at the distribution, I found a skew of 1.23 (SE = 0.65). The mean rating was 4.78. What is the z-score for the skew of my data?

A) 1.89
B) 0.53
C) -3.92
D) 3.36

Question 6

Which of the following is not recommended when displaying information graphically?

A) Minimum use of ink
B) Use of 3-D effects
C) Informative labelling of each axis
D) Minimizing the number of distractions

Question 7

What could be done to make the information in this graph more clear?

A) Use a stacked histogram.
B) Identify actual days of the week rather than just number.
C) Use a population pyramid.
D) Identify if visitors were male, female or children and who they were visiting.

Question 8

What conclusion can be drawn from the boxplot below?

A) More infants with SIRDS survived than died.
B) Infant survival in cases of SIRDS is related to birthweight.
C) Deaths of SIRDS were higher than survivors.
D) None of the above.