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raketka [301]
2 years ago
7

A subway train on the Red Line arrives every eight minutes during rush hour. We are interested in the length of time a commuter

must wait for a train to arrive. The time follows a uniform distribution.
a. Define the random variable. X= _______
b. X∼ _______
c. Graph the probability distribution.
d. f(x)= _______
e. μ= _______
f. σ= _______
g. Find the probability that the commuter waits less than one minute.
h. Find the probability that the commuter waits between three and four minutes.
i. Sixty percent of commuters wait more than how long for the train? State this in a probability question, similarly to parts g and h, draw the picture, and find the probability.
Mathematics
1 answer:
olasank [31]2 years ago
5 0

Answer:c i just did the test

Step-by-step explanation:

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aleksandrvk [35]

Answer:

  • Plan: separate the variable term from the constant term; divide by the coefficient of the variable.
  • Steps: add 4 to both sides; collect terms; divide both sides by 3.

Step-by-step explanation:

The first step is to look a the equation to see where the variable is in relation to the equal sign, and whether there are any constants on that same side of the equal sign.

Here, the variable terms are on the left, and there is a constant there, as well. The plan for solving the equation is to eliminate the constant that is on the same side of the equation as the variable, then divide by the coefficient of the variable. To find that coefficient, we need to collect terms. In summary, the plan is to ...

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  • collect terms
  • divide by the coefficient of the variable (3)

Executing that plan, the steps are ...

  -2x -4 +5x +4 = 8 +4 . . . . add 4

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  x = 4 . . . . . . . . . divide by 3

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Anna35 [415]

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Step-by-step explanation:

80-37 = 43

7 0
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antoniya [11.8K]

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Step-by-step explanation:

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3 years ago
If you deposit `\$300` in an account and it grows by `6\%` each year, how much money will be in your account after `1` year?
igomit [66]

Answer:

$318

Step-by-step explanation:

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