Find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample d

Question

Find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample data.
Fourteen different second-year medical students measured the blood pressure of the same person. The systolic readings (in mmHg) are listed below.

120120
132132
140140
134134
140140
132132
127127
132132
120120
148148
143143
145145
137137
132132

(a) The mean blood pressure reading is
nothing
mmHg.
(Round to the nearest tenth as needed.)
(b) The median blood pressure reading is
nothing
mmHg.
(Round to the nearest tenth as needed.)
(c) Select the correct choice below and fill in any answer boxes within your choice.
A.
The mode blood pressure reading is
nothing
mmHg.
(Use a comma to separate answers as needed.)
B.
There is no mode.
(d) The midrange of the data set is
nothing
mmHg.
(Round to the nearest tenth as needed.)

Explanation / Answer

putting above data in ascending order:

(a) The mean blood pressure reading is =134.4

b)median blood pressure reading is =(n+1)/2 th value =(14+1)/2 th value =7.5 th value =(132+134)/2 =133

c)The mode blood pressure reading is =132 (appears maximum 4 times)

d) midrange of the data set is =Q3-Q1 =3(n+1)/4 th value -(n+1)/4 th value =11.25 th value -3.75th value

=140.75-130.75 =10

X 120 120 127 132 132 132 132 134 137 140 140 143 145 148

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