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Pavlova-9 [17]
3 years ago
9

Which of the following is a valid probability distribution? Please help me i cant get this one right

Mathematics
2 answers:
Dimas [21]3 years ago
7 0

Answer:

Probability D

Step-by-step explanation:

The probability distribution should be 1

Probability A

Add the probabilities

.2+.2+.2+.2+.2+.2 = 1.2  >1  cannot happen

Probability B

Add the probabilities

.1+.2+.3+.3+.2+.1 = 1.2  >1  cannot happen

Probability C

Add the probabilities

.1+.2+.3+0+.1+.1 = .8  <1  the probability should be 1

Probability D

Add the probabilities

.2+.1+.1+.5+0+.1 = 1 This is a correct probability distribution

daser333 [38]3 years ago
7 0

Answer:

The answer is probability D.

Step-by-step explanation:

The probability distribution should be 1

Probability A

Add the probabilities

.2+.2+.2+.2+.2+.2 = 1.2  >1  cannot happen

Probability B

Add the probabilities

.1+.2+.3+.3+.2+.1 = 1.2  >1  cannot happen

Probability C

Add the probabilities

.1+.2+.3+0+.1+.1 = .8  <1  the probability should be 1

Probability D

Add the probabilities

.2+.1+.1+.5+0+.1 = 1 This is a correct probability distribution

Read more on Brainly.com - brainly.com/question/16590381#readmore

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The weight of an object on Mars m is 40% of its weight on Earth w. Write a function rule for the situation. Then find the weight
Marrrta [24]

Answer: The weight of space probe on Mars is 6 lb.

Write a function rule for each situation. Then use your function as indicated. The force of gravity is less on Mars than it is on Earth. As a result, the weight of an object on Mars m is 40% of its weight on Earth w. Use your function to find the weight on Mars of a space probe that weighs 15 lb on Earth.

m is weight on Mars

w is weight on Earth

m is 40% of w

f(w) = m = (40/100)w

The weight of space probe is 15 lb on Earth

substituting w = 15 in the function we get,

f(15) = m = (40/100)15

= 6

ANSWER: The weight of space probe on Mars is 6 lb.

Step-by-step explanation:

Answer:

Hence, the answer is 40 pounds.

Step-by-step explanation:

An object that weighs 50 pounds on mars weighs 150 pounds on earth.

Let the object weighing 120 pounds on Earth, weighs x pounds on Mars.

We can solve this equation as :

=>  

x = 40 pounds

Hence, the answer is 40 pounds.

Or we can also solve this as :

150 pounds on Earth weighs 50 pounds on Mars.

1 pound weighs =  pounds on Mars

And 120 pounds will weigh =  pounds on Mars.

3 0
3 years ago
Read 2 more answers
I took picture off it
Alina [70]

Answer:

F

Step-by-step explanation:

the box plot is divided into quarters, the line on the end to 20 being 1/4th, the start of the box to the line in the box being another 1/4th, the middle line to the end of the box is another 1/4th, and the last line is the last 1/4th

4 0
3 years ago
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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
X² – 7<br> y=<br> X+6<br> Calculate the value of y given x= -2
hram777 [196]

Answer:

y=0

Step-by-step explanation:

4-7y=-2+6

4-7y=4

-7y=0

y=0

5 0
3 years ago
A total of 202 tickets were sold for a theatre showing. If child tickets cost $6 and adult tickets cost $10, how many tickets of
polet [3.4K]

Answer:

167 adult tickets were sold

35 children tickets were sold

Step-by-step explanation:

Let the number of adult tickets be x

Let the number of children tickets be y

Total number of each ticket sold;

x + y = 202 equation 1

Total cost of the tickets

10x + 6y = 1708 equation 2

Let

x= 202 - y equation 3

Substitute 3 into 2

10(202 - y) + y = 1708

2020 - 10y + y = 1708

-9y = 1708 - 2020

-9y = -312

y= 35

Substitute y =35 into 1

x + 35 =202

x= 202 - 35

x= 167

Therefore;

167 adult tickets were sold

35 children tickets were sold

3 0
3 years ago
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