Mathematics, 10.03.2020 19:49, xoudoyditaous85alja
A stereo store is offering a special price on a complete set of components (receiver, compact disc player, speakers, turntable). A purchaser is offered a choice of manufacturer for each component:
Receiver: Kenwood, Onkyo, Pioneer, Sony, Sherwood
Compact disc player: Onkyo, Pioneer, Sony, Technics
Speakers: Boston, Infinity, Polk
Turntable: Onkyo, Sony, Teac, Technics
A switchboard display in the store allows a customer to hook together any selection of components (consisting of one of each type).
Use the product rules to answer the following questions/;
(a) In how many ways can one component of each type be selected?
(b) In how many ways can components be selected if both the receiver and the compact disc player are to be Sony?
(c) In how many ways can components be selected if none is to be Sony?
(d) In how many ways can a selection be made if at least one Sony component is to be included?
(e) If someone flips switches on the selection in a completely random fashion, what is the probability that the system selected contains at least one Sony component? Exactly one Sony component? (Round your answer to three decimal places.)
Answers: 2
Mathematics, 21.06.2019 20:30, cogger9348
3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.
Answers: 1
Mathematics, 22.06.2019 02:50, tristasbarker03
Given the functions, fx) = x^2-4 and g(x) = x+ 2, perform the indicated operation. when applicable, state the domain restriction. f(g(x))
Answers: 1
Mathematics, 22.06.2019 03:00, ernestsbaby6181
Crickets can jump with a vertical velocity of up to 14 ft/s. which equation models the height of such a jump, in feet, after t seconds? h(t) = β16t2 + v0t + h0 h(t) = β16t2 + v0t + 14 h(t) = β16t2 + 14t h(t) = β16t2 + 14t + 14 what is the maximum height the cricket reaches? round to the nearest thousandth. h = feet
Answers: 1
A stereo store is offering a special price on a complete set of components (receiver, compact disc p...
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