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Gnom [1K]
3 years ago
14

The expected value of a random variable is the

Mathematics
1 answer:
alekssr [168]3 years ago
6 0

Answer:

The expected value of random variable X is often written as E(X) or µ or µX.

Step-by-step explanation:The expected value is the 'long-run mean' in the sense that, if as more and more values of the random variable were collected (by sampling or by repeated trials of a probability activity), the sample mean becomes closer to the expected value.

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Thomas goes to summer camp every year if his parents drive 155 miles to Camp to drop him off and then go back to pick him up in
prisoha [69]
I would say 465 since they go back and forth twice which is 155 x 3
8 0
3 years ago
HELP ILL GIVE BRAINLESS DUE SOON
Sav [38]

Answer:

D) 39

Step-by-step explanation:

The numbers, put in order, are:

30 32 32 36 42 43 44 45

The median (middle) is between 36 and 42.

39 is halfway between 36 and 42.

5 0
3 years ago
Read 2 more answers
What is the measure of the missing angle?!
qwelly [4]

Your answer would be 42 degrees.

To solve this, first look at the information we're given. We know that the shape the missing angle is part of is a triangle, so therefore, the sum of the interior angles will always be 180 degrees. There is a right angle inside of the triangle. One of the exterior angles is 132 degrees.

The first thing we can see from this is that the two interior angles which are not right angles must add up to 90 degrees. Since the sum of all the interior angles is 180 degrees, and there is already a 90 degree angle, the other two must add up to 90 degrees.

The next step would then be to find the other interior angle which is not the missing angle. We can do this because of the exterior angle.

A straight line always has a measure of 180 degrees. In this case, we can see that the line the exterior angle is resting on is straight, and the exterior angle + the other interior angle = the line. Therefore, 132 + the other interior angle must equal 180 degrees.

Subtract 132 from both sides, and you get the other interior angle has a measure of 48 degrees.

Now, to take that and figure out the missing angle.

We know that the angle with a measure of 48 degrees and the missing angle must add up to 90 degrees, as stated above.

48 + missing angle = 90

Subtract 48 from both sides, and you get the measurement of the missing angle is 42 degrees.

Good luck!

8 0
3 years ago
What is the slope and point of y-1=-4(x+3)
rodikova [14]

Answer:

M= -4

Point (3,1)

Step-by-step explanation:

The slope is -4

the point is (3,1)

4 0
3 years ago
I need to turn this in in like 10 mins please answer the question is the 3rd one
erastova [34]

Answer:D. trapezoid

Step-by-step explanation:

hope this helps!

8 0
4 years ago
Read 2 more answers
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