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saw5 [17]
3 years ago
8

The random variable X, representing the number of accidents in a certain intersection in a week, has the following probability d

istribution: On average, how many accidents are there in the intersection in a week
Mathematics
1 answer:
ale4655 [162]3 years ago
5 0

Answer:

Average Mean = 1.8

Step-by-step explanation:

Missing:

X:0 1 2 3 4 5 6

P(x): 0.20 0.30 0.20 0.15 0.10 0.05

Computation:

Average Mean [Probability distribution]

∑[P(x) × X]

= 0 x 0.20 + 1 x 0.30 + 2 x 0.20 + 3 x 0.15 + 4 x 0.10 + 5 x 0.05

= 1.8

Average Mean = 1.8

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Over a period of a week, the 4 people in Group C ran a total of 27 miles, while the
andrew11 [14]
Group C ran more miles an individual.

Explanation: To find the number of miles per individual, you must subtract the total number of miles by the total number of people who ran those miles. Which ever answer is larger, tells us which group ran more miles an individual.

Here are the calculations-

Group C: 27/4=6.75
Group D: 39/6=6.5

As you can see, Group C ran more miles an individual than Group D.

Hope this Helped!
6 0
4 years ago
ΔWXY, the measure of ∠Y=90°, WY = 8, YX = 15, and XW = 17. What ratio represents the tangent of ∠X?
valina [46]
The ratio Tangent is the opposite side over the adjacent side of the angle.
Tan (x) = 8/15
8 0
3 years ago
An integer is 3 less than 5 times together. If the product of the two integers is 36, then find the integers
saw5 [17]

Step-by-step explanation:

An integer is 3 less than 5 times another. If the product of the two integers is 36, then the integers are: 3 and 12. Solution: x * (5x 3) 36; 5x2 - 3x = 36; 5x2 -3x 36 = 0; (5x + 12)(x - 3) = 0; x = -12/5 or x =3.

6 0
3 years ago
Janice is thinking of two numbers. She says that two times the first number plus the second number is 47. In​ addition, the firs
Whitepunk [10]
Let the numbers be x and y, then
2x + y = 47 . . . (1)
x + 3y = 56 . . . (2)

(2) x 2 => 2x + 6y = 112 . . . (3)

(1) - (3) => -5y = -65 => y = -65/-5 = 13
From (2), x + 3(13) = 56 => x = 56 - 39 = 17

The two numbers are 13 and 17.
3 0
3 years ago
a map of Texas uses the scale of 1.5 to represent 60 miles the distance between corpus Christi to Houston is 60 miles what is th
Mama L [17]

Answer:ahhhh

Step-by-step explanation:

I hope this helps

4 0
3 years ago
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