An outbreak of the deadly Ebola virus in 2002 and 2003 killed 91 of the 95 gorillas in 7 home ranges in the Congo. To study the spread of the virus, measure " distance" by the number of home ranges separating a group of gorillas from the first group infected. Here are data on distance and number of days until deaths began in each later group:

Distance     143677
Days    32231414349
Use a calculator or software to find the following values.

(a) Find the mean and standard deviation of   .

MEAN:  
STANDARD DEVIATION:  

(b) Find the mean and standard deviation of   .

MEAN:  
STANDARD DEVIATION:  

(c) Find the correlation between and .

r:  

You can earn partial credit on this problem.