3. A box contains 3 red balls and 2 white balls. Two balls are picked randomly from the box without replacement. The random variable X is the number of red balls, and Y is the number of white balls. a. Find the pmfs of X and of Y. b. Show the calculation of the correlation coefficient between X and Y. c. Explain how, without doing any calculation, you could predict the result found in part b.

answer

see attachment

explanation

the given function is

this function has y-intercept at

-4 and a slope of 2.

note that, the graph has a positive slope.

the graph that represents this function is the straight line that moves upward from left to right.

the graph touches the y-axis at -4.

the correct choice is the graph shown in the attachment.

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest