Solución
Suppose you draw one card from a standard 52-card deck. What is the probability that it is a red or a Jack?
Solución
Pasos de solución
Find the probability of it is a red:
Find the probability of a jack:
Find the probability of it is a red and a jack:
Use the Inclusion-Exclusion formula
Ejemplos populares
Mina is twice as old as Marko. The sum of their ages is 45.The sum of three numbers is 149. The third number is 4 times the second. The first number is 5 more than the second. What are the numbers?61 decreased by twice a numberChristine opened a savings account and deposited 100.00. The account earns 1% interest, compounded monthly. If she wants to use the money to buy a new bicycle in 3 years, how much will she be able to spend on the bike?This summer, due to some renovations, a sports club has 63 members. The club's records indicate that this is 25% fewer members than it had last summer. How many members were there last summer?