Week 1 Assignment
For each of the following (a through d), indicate which is a variable and which is a constant:
The number of minutes in an hour. constant
Systolic blood pressure variable
Blood type constant
The number of days in a week co
The mean and the mode are always the same for a dataset of over 10 values.
When calculating a Pearson's
correlation coefficient, it is necessary that both variables have
approximately normal distributions.
Median Range Q1
Heart Rate 25 124.56 13.475533 125
116 134 -0.12222967 -0.030154642 125
Frequency table results for Heart Rate:
Count = 25
Heart Rate FrequencyPercent of Total Cumulative
1. What does the table show you about poverty and work status?
2. Is this a surprise?
% Within P
% Within WS
% of total