What is the probability of choosing two of the same animal?
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- Find the number of playing cards in a standard deck of 52 cards that are either tens or red cards with numbers on them.The vast majority of Visa and Discover Card credit cards have 16-digit card numbers. The first digit is either 4 (Visa) or 6 (Discover), digits 2 through 6 identify the issuer, digits 7 through 15 identify the customer, and the last digit is a "check digit" determined by the digits that precede it.† Your company, CreditXplosion, Inc., issues both Visa and Discover credit cards. How many different CreditXplosion Discover card numbers are possible in which the check digit is wrong?calculate the number of ways that the first, second, and third place horses can finish in a race with 9 horses