Math 54 Hybrid - Elementary Statistics
Exam I(Form A), Spring 2020 (100 points)
Directions: Answer all of the questions on this exam and clearly show all necessary work in order to receive credit
or partial credit. This exam is closed book and closed notes, but you may use your formula card. You may use
acalculator but cell phones are not allowed during the exam, even to be used as a calculator.
PART I: Multiple Choice (21 points) Circle thebestanswer for each question, 3 points each.
1. We notice that for the last 3 Thursdays a car sales company sells 1, 0, and 2 cars respectively.
If we come up with a statement based on this information that this car sales company never
sells more than 2 cars on any Thursday, what type of statistics is this an example of?
a) descriptive statistics
b) predictive statistics
c) inferential statistics
d) differential statistics
2. Which statistic tells how far apart the smallest and largest values of a data set are without
revealing the spread of the values in-between them?
d) standard deviation
3. Which of the following below is true about an ogive?
a) It is constructed by drawing rectangles for each class of data, in which the
height of each rectangle is the frequency or rela...
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