21 phones have quite recently been gotten at an approved help community. Seven of these phones are cell, seven are cordless, and the other seven are corded telephones. Assume that these segments are arbitrarily designated the numbers 1, 2, . . . , 21 to set up the request in which they will be overhauled. (Round your responses to four decimal spots.)

=5=

(a) What is the likelihood that every one of the cordless telephones are among the initial fourteen to be adjusted?

(b) What is the likelihood that in the wake of overhauling fourteen of these telephones, telephones of just two of the three kinds stay to be adjusted?

(c) What is the likelihood that two telephones of each sort are among the initial six overhauled?

Forte Toys, Inc., sells an assortment of new and imaginative youngsters' toys. Likewise with different items, Specialty faces the choice of how may Weather Teddy units to arrange for coming Christmas season. Individuals from the supervisory group recommended request amounts of 15,000, 18,000, 24,000, 28,000 units. The wide scope of request amounts recommended demonstrates extensive conflict concerning the market potential. The item supervisory group request you for investigation from the stock-out probabilities for different request amounts, a gauge of the item potential, and to help make a request amount proposal. Forte hopes to sell Weather Teddy for $24 dependent on cost of $16 per unit. On the off chance that stock remaining parts after the Christmas season, Specialty will sell all overflow stock for $5 per unit. Subsequent to investigating the business history of comparative items, Specialty%u2019s deals forecaster anticipated and anticipated interest of 20,000 units with a .95 likelihood that request would be between 10,000 units and 30,000 units. Set up an administrative Report that tends to the accompanying issues and suggests a request amount for the Weather Teddy item.

One of Specialty's director felt that the benefit potential was incredible to the point that the request amount ought to have a 70% possibility of fulfilling need and just a 30% possibility of any stock-outs. What amount would be structure under this strategy, and what is the extended benefit under the three deals situations?

When playing American roulette, the coupler orderly twists a marble that lands in one of the 38 openings rotating turntable. The spaces are numbered 1 to 36, with 2 extra openings named 0 and 00 that are painted green. Expect a solitary twist of the roulette wheel is made. Discover the likelihood of winning with the given her. An illustration of a five-number bet is wagering that the marble will land in an opening numbered 14, 15, 16, 17, or 18. The likelihood of winning with the given five number bet is 538. Type a number or an improved on division.

The measure of time needed for a specific kind of car

transmission fix at a help carport is regularly circulated with

mean = 45 min, and standard deviation = 8 min. The assistance

administrator intends to have work start on the transmission of a

client's vehicle 10min, after the vehicle is dropped off, and he tells the

client that the vehicle will be prepared inside one hour in all out time.

(a) What is the likelihood that he will not be right?

(b) What is the likelihood that the functioning time will be between

40 and 52 min?

(c) What is the necessary working time slot with the end goal that there is

90% possibility that the transmission fix will be finished

inside that time?

(d) What is the functioning time slot with the end goal that there is simply

30% possibility that the transmission fix can be finished

inside that time?