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Part 1
Find the mean and median for the waiting times at Big Bank given below. Show your work clearly, and
verify that both are the same. The following values are measured in minutes.
Big Bank (three lines): 4.1 5.2 5.6 6.2 6.7 7.2 7.7 7.7 8.5 9.3 11.0
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Part 1
Which of the following shows how to compute the mean?
A.
mean=(sum
of all
values)
×
(total
number of values)
B.
mean=sum
of all
values+total
number of values
C.
mean=sum of all valuestotal number of values
Your answer is correct.
D.
mean=total number of valuessum of all values
Part 2
The sum of all values is
79.2
79.2.
(Type an integer or a decimal.)
Part 3
The total number of values is
11
11.
(Type a whole number.)
Part 4
Calculate the mean.
The mean is
7.2
7.2.
(Round to one decimal place as needed.)
Part 5
Notice that the data are given in ascending order. How should the median be found in this case? Select
the correct choice below and fill in the answer box(es) to complete your choice.
A.
The median is the
6
6th
value in the sorted data set.
(Type a whole number.)
Your answer is correct.
B.
The median is halfway between the
enter your response here th
and
enter your response here th
values in the sorted data set.
(Type whole numbers. Use ascending order.)
