Let y1 and y2 denote the number of times that persons a and b toss the coin, respectively. if heads occurs with probability p and tails occurs with probability 1−p, it is reasonable to conclude that y1 and y2 are independent and that each has a geometric distribution with parameter p. consider y1−y2, the difference in the number of tosses required by the two individuals.

find v[y1y2].

Gray looks up the definition of point. a point is a location in a region. what is true about the statement describing the word point? 1. the statement uses the terms location and region that are defined based on an understanding of a point. 2.the statement precisely defines the concept of a point. 3. the statement does not include information needed to fully define a point. 4. the statement is an incorrect description of a point because it does not use mathematical words.