Blood pressure values are often reported to the nearest 5 mmHg (100, 105, 110, etc.). Suppose the actual blood pressure values for nine randomly selected individuals are 118.6 127.4 138.4 130.0 113.7 122.0 108.3 131.5 133.2 a. What is the median of the reported blood pressure values? b. Suppose the blood pressure of the second individual is 127.6 rather than 127.4 (a small change in a single value). How does this affect the median of the reported values? What does this say about the sensitivity of the median to rounding or grouping in the data?
Blood pressure values are often reported to the nearest 5 mmHg (100, 105, 110, etc.). Suppose the actual blood pressure values for nine randomly selected individuals are 118.6 127.4 138.4 130.0 113.7 122.0 108.3 131.5 133.2 a. What is the median of the reported blood pressure values? b. Suppose the blood pressure of the second individual is 127.6 rather than 127.4 (a small change in a single value). How does this affect the median of the reported values? What does this say about the sensitivity of the median to rounding or grouping in the data?
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.2: Proportions
Problem 47WE
Related questions
Question
Blood pressure values are often reported to the nearest
5 mmHg (100, 105, 110, etc.). Suppose the actual blood
pressure values for nine randomly selected individuals are
118.6 127.4 138.4 130.0 113.7 122.0 108.3
131.5 133.2
a. What is the
values?
b. Suppose the blood pressure of the second individual
is 127.6 rather than 127.4 (a small change in a single
value). How does this affect the median of the
reported values? What does this say about the sensitivity of the median to rounding or grouping in the
data?
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