Question
What does the interquartile range describe?
Answer
The lower 50% of the observations
The middle 50% of the observations
The upper 50% of the observations
The lower 25% and the upper 25% of the observations
Question
Give an example of how systems of equations in 3 variables can be used to solve a problem from health care field.
Question
Fifteen randomly selected college students were asked to state the number of hours they slept the previous night. The resulting data are 5,6,6,8,7,7,9,5,4,8,11,6,7,8,7. Find the following ;
a. Variance s2, using formula (2.5)
b. Variance s2, using formula (2.9)
c. Standard deviation, s