3 years ago

Which of these is an example of a discrete random variable?

Mathematics

1 answer:

34kurt3 years ago

7 0

Answer:

Step-by-step explanation:

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ali wants to buy a piano the piano measures 19/4 feet long she has a space 5 feet long for the paino in her house. does she have

IceJOKER [234]

Yes. This is because 19/4 as a mixed number is 4 3/4. 4 3/4 < 5. It might be a tight fit but she has enough room

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3 years ago

Please help me with this question

adoni [48]

Answer:

$y = e^{x^2 - 3x}\\\\\\Let \ u = x^2 - 3x\\\\y = e^u\\\\\frac{dy}{du} = e^u\\\\\frac{du}{dx} = 2x - 3\\\\y' = \frac{dy}{dx} = \frac{dy}{du} *\frac{du}{dx} = e^u * (2x -3)\\\\Substitute \ u = x^2 -3\\\\y' = (2x -3)e^{x^2-3x}\\\\option A$

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3 years ago

an aircraft flew 5 hours with the wind. the return trip took 6 hours against the wind. if the speed of the plane in still air is

olga2289 [7]

w = 37.846 mph (wind rate)
plane speed in still air: 492 mph

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3 years ago

at a school there are 10 students taking only chemistry, 9 students taking only physics 5 students taking both, and 16 students

sveticcg [70]

Answer:

If there are 10 students taking only chemistry, 9 students taking only physics, and 5 students only taking both chemisty and 16 students are taking neither; I would add 10+9+5+16=40 (total students) and divide 10/40 (25% chemistry) 9/40 (22.5% physics) 5/40 (12.5% both) 16/40 (40% neither)

Step-by-step explanation:

1. Determine a single event with a single outcome.

2. Identify the total number of outcomes that can occur.

3. Divide the number of events by the number of possible outcomes.

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Lena [83]

Answer:

62 1/2

Step-by-step explanation:

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