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raketka [301]
3 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]3 years ago
5 0

Answer:c i just did the test

Step-by-step explanation:

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Will mark brainliest for whoever answers
Sloan [31]

Answer:

8.5 hours

Step-by-step explanation:

30 mins per page ( 15 )

so, 30 × 15 = 450

each hour is 60 minutes so 450 ÷ 60 = 7.5

then add the 1 hour that she already took to write the outline, so 8.5 hrs

5 0
2 years ago
Read 2 more answers
Find the sum of all positive divisors of 50 that are also divisors of 15. Pls
egoroff_w [7]

Answer:

6

Step-by-step explanation:

Listing the divisors of each number

50 : 1, 2, 5, 10, 25, 50

15 : 1, 3, 5, 15

The common divisors are : 1, 5

Their sum = 1 + 5 = 6

6 0
3 years ago
2 1/2 x 3 1/5 fast please
vova2212 [387]

Step-by-step explanation:

<u>Let's turn each mixed fraction into an improper fraction:</u>

2 \frac{1}{2} =\frac{2}{2} +\frac{2}{2} +\frac{1}{2} =\frac{5}{2}

3\frac{1}{5} =\frac{5}{5} +\frac{5}{5} +\frac{5}{5} +\frac{1}{5} =\frac{16}{5}

<u>Multiply:</u>

\frac{5}{2} \times \frac{16}{5} =\frac{80}{10}

<u>Simplify:</u>

\frac{80 \div 10}{10 \div 10} =\frac{8}{1} =8

8 is your simplified product.

4 0
2 years ago
The price of pears at a farm is $1.41 per pound. Which equation can be used to determine c, the total price of n pounds of pears
Schach [20]

Answer:

C = 1.41n

Step-by-step explanation:

you have to multiply 1.41 by the weight(n)

7 0
3 years ago
Round 5,685 to the nearest 100
zloy xaker [14]

Hi. Your answer is 5,700 because 685 is closer to 700 than 600. Please ask if you have any more questions. Also please mark as the brainliest answer!

3 0
3 years ago
Read 2 more answers
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