Use a ________ chart if you want to compare the relative sizes of the classes in a frequency distribution and together they comprise all possible categories.
A) horizontal bar
B) vertical bar
C) Pareto
D) pie
Q. 2The ________ probability distribution is useful when the majority of the data tend to be in the middle of the distribution.
A) Poisson
B) normal
C) exponential
D) uniform
Q. 3The hypothesis statement is an example of a null hypothesis.
Indicate whether the statement is true or false
Q. 4The ________ is the value that appears most often in a data set.
A) mean
B) median
C) mode
D) range
Q. 5The ________ probability distribution describes data where all the values have the same chance of occurring.
A) discrete
B) normal
C) exponential
D) uniform
Q. 6Pareto charts also plot the cumulative relative frequency as a line on the chart. This line is known as a(n) _________.
A) scatter plot
B) ogive
C) histogram
D) frequency distribution
Q. 7No shows are the people with reservations who fail to arrive. The following table shows the number of no shows each day at a hotel over the last 125 business days.
Number of No Shows Frequency
0 61
1 35
2 10
3 12
4 7
What is the mean number of no shows per day?
A) 0.650
B) 0.952
C) 1.227
D) 1.895
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