There are 15 cards in total. Cards that are numbered with multiples of 3 are: 3, 6, 9, 12, 15. Cards that are numbered with multiples of 5 are: 5, 10, 15. 15 is a multiple of both numbers so it only needs to be counted once and if we count the other cards that is a total of 7 cards out of the 15. This makes the probability 7 out of 15 or 7/15.
There is a deck of 12 cards numbered 1 through 12. One card is drawn at random from the deck, look at it and then put it back in the deck. A total of two cards are drawn in this way. Define the following events: • A : get an
Twenty cards are numbered from 1 to 20. The cards are shuffled and then placed face down on the table. A card is drawn random. What is the probability that the number on this card is: a) 14 b) an even number c)less than 11
At Brilli's zoo, she is trying to train a monkey to learn how to count. The monkey is given a stack of cards, numbered 1 to 30, in some random order. The cards are laid out from left to right. Each time the monkey moves the card
I have an SAT Question of the Day that I'm having trouble with. The question is: Seven cards in a pile are numbered 1 through 7. One card is drawn. The units digit of the sum of the numbers on the remaining cards is 7. What is the
Face cards are removed from a standard deck of cards and the rest are set aside. two cards are drawn at random from the face cards. once a card is selected, it is not replaced. Find each possibility. P(jack and then king)? P(two
. Two cards are drawn at random, without replacement, from a standard 52-card deck. Find the probability that: (a) both cards are the same color (b) the first card is a face card and the second card is black
A card is drawn at random from a full pack of playing cards. It is not put back. A second card is then drawn from the same pack. (a) Find the probability that: (i) both cards are sevens (ii) neither card is a seven (iii) at least
Given a standard deck of 52 cards, what is the probability that two cards drawn at random will have the same rank? Note that first card drawn is not added back into the deck when the second card is drawn.
a box contains 100 cards, of which 25 are numbered 1, 35 are numbered 2, 30 are numbered 3, 10 are numbered 4. One card will be drawn from the box and its number X observed. Give the probability distribution of X How in the world