Answer following:
After several studies, professor smith concludes that there is azero correlation between body weight and bad tempers. This meansthat
A traffic safety officer conducted an experiment to determinewhether there is a correlation between people's ages and drivingwere randomly sampled and the following data were collected.
Age: 20 25 45 46 60 65
Speed: 60 47 55 38 45 35
The value of pearson r equals
If sy=1, and sx=1, and r=0.6, what will the value of b be?
Correlation is the same thing as causation = t/f
A researcher collects data on the relationship between theamount of daily exercise an individual gets and the percent of bodyfat following scores were recorded.
Exercise (minutes): 10 18 26 33 44
% Body Fat: 30 25 18 17 14
Assuming the linear relationship holds, the least squareregression line for predicting % body fat from the amount ofexercise ___
What is the probability of rolling two sixes with one roll of apair of dice ( a six and a six)? =
In a positive relationship, =
If the regression equation for a data set is Y'=2.650X+11.250,then the value of Y' for X=33 is =
Suppose you are going to randomly order individuals A,B,C,D,E,and F. the probability that the first person will be A and thesecond person will be B is =
The probability of drawing an ace followed by a king (withoutreplacement) equals =
