P
PR_Girl
Guest
A major corporation has sales branches in nine cities. The company president wants to visit five of the cities.
How many different groups of five cities can be selected from the nine?
9 C 5 = 9! / (9 – 5)! 5! = 9! / 4! 5! = 126
Once the five cities are selected, how many different itineraries are possible?
5! = 120
A standard deck of cards consists of 52 cards. There are 13 red hearts, 13 red diamonds, 13 black clubs, and 13 black spades. Furthermore each suit contains a 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and an ace. The jack, queen, and king are considered face cards. What is the probability of selecting two cards without replacement from a well-shuffled deck and the first card selected is a heart and the second card selected is red? For this problem please first state your answer in fractional form and then either write your answer in simplified fractional form, decimal form, or percent form.
If three dice are rolled in succession (roll one die then roll the next then roll the third die), what is the probability that all 3 land with a 5 up?
Packages that contain one tiny pot with one Venus Fly Trap seed inside can be found for sale in the Toy Department of a BX. Included in the package is a notice regarding the germination rate. Let’s use 80% as the germination rate (this is rounded from what is actually stated in the packages) and let’s assume that this is a promotional offer so this BX only obtained a shipment of 20 of these packages.
What is the expected number of seeds to germinate in this shipment? AND what is the standard deviation?
What is the probability that a seed will not germinate?
What is the probability that more than 16 or 17 of the seeds in this shipment germinate?
How many different groups of five cities can be selected from the nine?
9 C 5 = 9! / (9 – 5)! 5! = 9! / 4! 5! = 126
Once the five cities are selected, how many different itineraries are possible?
5! = 120
A standard deck of cards consists of 52 cards. There are 13 red hearts, 13 red diamonds, 13 black clubs, and 13 black spades. Furthermore each suit contains a 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and an ace. The jack, queen, and king are considered face cards. What is the probability of selecting two cards without replacement from a well-shuffled deck and the first card selected is a heart and the second card selected is red? For this problem please first state your answer in fractional form and then either write your answer in simplified fractional form, decimal form, or percent form.
If three dice are rolled in succession (roll one die then roll the next then roll the third die), what is the probability that all 3 land with a 5 up?
Packages that contain one tiny pot with one Venus Fly Trap seed inside can be found for sale in the Toy Department of a BX. Included in the package is a notice regarding the germination rate. Let’s use 80% as the germination rate (this is rounded from what is actually stated in the packages) and let’s assume that this is a promotional offer so this BX only obtained a shipment of 20 of these packages.
What is the expected number of seeds to germinate in this shipment? AND what is the standard deviation?
What is the probability that a seed will not germinate?
What is the probability that more than 16 or 17 of the seeds in this shipment germinate?