De 75 estudiantes de un aula, los 3/5 usa reloj; 1/3 de los estudiantes sólo usa anteojos; los 2/5 usan anteojos y reloj ¿Cuántos no usan anteojos ni reloj?

Sum is 17 and their difference is 3

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.