Armando Marsh

Biology

17 May, 04:14

A. true

b. false, the probability that a or b will occur is upper p left parenthesis upper a or upper b right parenthesis equals upper p left parenthesis upper a right parenthesis plus upper p left parenthesis upper b right parenthesis minus upper p left parenthesis upper a and upper b right parenthesisp (a or b) = p (a) + p (b) - p (a and b).

c. false, the probability that a or b will occur is upper p left parenthesis upper a or upper b right parenthesis equals upper p left parenthesis upper a right parenthesis times upper p left parenthesis upper b right parenthesisp (a or b) = p (a) •p (b).

d. false, the probability that a or b will occur is upper p left parenthesis upper a or upper b right parenthesis equals upper p left parenthesis upper a right parenthesis plus upper p left parenthesis upper b right parenthesisp (a or b) = p (a) + p (b).