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jeka94
2 years ago
9

Eighteen individuals are scheduled to take a driving test at a particular DMV office on a certain day, eight of whom will be tak

ing the test for the first time. Suppose that six of these individuals are randomly assigned to a particular examiner, and let X be the number among the six who are taking the test for the first time.
a. What kind of a distribution does X have (name and values of all parameters)?
b. Calculate the mean value and standard deviation of X.
Mathematics
1 answer:
77julia77 [94]2 years ago
6 0

Answer:

hi

Step-by-step explanation:

The answer would be b.

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Answer:

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Step-by-step explanation:

Let me know :)

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What does x equal in the equation 3x=x+24
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3x = x + 24

3x - x = 24

2x = 24

x = 24 : 2

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En un salon de clases cuando se colocan cuatro alumnos en cada banca, 3 de ellos quedan sin puesto y cuando se colocan de a 5 en
Harlamova29_29 [7]

Answer: 5 benches and 23 students

Step-by-step explanation:

I will answer in English.

We have E students and B benches.

If we sit 4 students per bench, we have 3 students left.

then:

E = 4*B + 3

And if we sit 5 students per bench, there are two places with no students sited.

E = 5*B - 2

now we can replace the E in the second equation with the right part in the first equation:

4*B + 3 = 5*B - 2

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So we have 5 benches, and:

E = 4*5 + 3 = 23 students.

5 0
3 years ago
Brian and Mark are fishing. They both catch a fish. Brian's fish weighs 17 pounds less than Mark's fish. Mark's fish weighs 22 p
Fittoniya [83]

Answer:

5 pounds.

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22 - 17 = 5

6 0
3 years ago
Help please will mark brainless 25 points due today
harkovskaia [24]

here's the solution,

we know that, sum of <u>measures</u> of each interior angle of a <u>triangle</u> = <u>180°</u>

<u>F</u><u>igure</u><u> </u><u>1</u><u>.</u>

=》

40 + 32 + 9x + 9 = 180

=》

81 + 9x = 180

=》

9x = 180 - 81

=》

x =  \frac{99}{9}

=》

x = 11

<u>Figure</u><u> </u><u>2</u><u>.</u><u> </u>

=》

42 + 63 + 4x + 15 = 180

=》

120 + 4x = 180

=》

4x = 180 - 120

=》

4x = 60

=》

x =  \frac{60}{4}

=》

x = 15

<u>Figure</u><u> </u><u>3</u><u>.</u>

=》

45 + 45 + 3x - 21 = 180

=》

3x + 69 = 180

=》

3x = 180 - 69

=》

3x = 111

=》

x =  \frac{111}{3}

=》

x = 37

8 0
3 years ago
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