Mathematics
Mathematics, 13.11.2019 22:31, gora2005

Each front tire on a particular type of car is supposed to be filled to a pressure of 26 psi. suppose that the actual tire pressure in each tire is a continuous random variable (x for the right tire and y for the left tire) with a joint pdf
a.) what is the value of k?
b.) what is the probability that both tires are underfilled?
c.) what is the marginal distribution of air pressure in the right tire alone?
d.) what is the probability that the difference in air pressure between the two tires is at most 2 psi?
normal 0 21 false false false pt-br x-none x-none 4
1.) if p, the price of a certain commodity (in dollars) and s, the total sales (in units of 10,000) are continuous random variables with a joint p. d.f.
a.) show that the joint density is properly normalized.
b.) find the probability that the price will be less than 30 cents and sales will exceed 20,000 units.
c.) find the probability that the price will be between 25 and 30 cents and sales will be less than 10,000 units.

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Each front tire on a particular type of car is supposed to be filled to a pressure of 26 psi. suppos...

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