1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly_w [17]
1 year ago
15

HELP HELP HELP HELP PLEASEEE

Mathematics
1 answer:
Sphinxa [80]1 year ago
3 0

The valid probability distributions are the ones in options C and D.

<h3>Which of the following are valid probability distributions?</h3>

For discrete random variables with probabilities p₁, p₂, ..., pₙ, there are two rules:

  • All of these probabilities are numbers between 0 and 1.
  • p₁ + p₂ + ... + pₙ = 1.

So, for the first rule we can discard the first option, where we have negative probabilities.

To check the other 4 options, just add the probabilities and see if the addition gives 1.

The options that add up to 1 are C and D, so these two are the correct options.

D: 1/5 + 1/10 + 1/10 + 1/10 + 1/5 + 1/10 + 1/10 + 1/10 = 1

C: 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 1

If you want to learn more about probability:

brainly.com/question/25870256

#SPJ1

You might be interested in
Last month, Justina dog ate 50 cans of dog food in 30 days. How many cans should Justin buy for the next 6 days
natali 33 [55]

Answer:

The answer is 7 2/3 cans for the next 6 days.

Step-by-step explanation:

Given: The dog ate 50 cans in 30 days.

To get how many cans per day, divide:

50/30 = 1 2/3 cans per day.

To get how many cans for 6 days, multiply:

6 * 1 2/3 = 18/3 + 5/3 = 23/3 = 7 2/3 cans or 7.667 in decimal form.

Hope this helps!! Have an Awesome day!!! :-)

7 0
3 years ago
If the area of a circle is 58 square feet, find the circumference. A. 42.5 ft. B. 4.25 ft. C. 22.35 ft. D. 26.99 ft.
PSYCHO15rus [73]

Answer: OPTION D.

Step-by-step explanation:

The formula for calculate the circumference of a circle is:

C=2r\pi

Where <em>r</em> is the radius.

The formula for calculate the area of a circle is:

A=r^2\pi

Where <em>r</em> is the radius.

Solve for <em>r</em> from A=r^2\pi to calculate it:

r=\sqrt{\frac{A}{\pi}}\\r=\sqrt{\frac{58ft^2}{\pi}}\\r=4.296ft

Subsitute the radius into C=2r\pi. Then:

C=(2)(4.296ft)\pi=26.99ft

3 0
3 years ago
Read 2 more answers
How do I factorise an expression
ololo11 [35]
It factorises to -
4(x+6)

3 0
2 years ago
Work out the answer to this problem to reduce to the simplest form 5/8-1/2=
inysia [295]
In order to subtract fractions, you need the denominators (bottom number) to be the same. \frac{1}{2} * \frac{4}{4} =  \frac{4}{8} . \frac{5}{8} - \frac{4}{8} =  \frac{1}{8}
3 0
2 years ago
Read 2 more answers
The rectangle shown has a perimeter of 7272 cm and the given area. its length is 66 more than four timesfour times its width. wr
Vadim26 [7]
<span>Width = 6 Length = 30 We know the perimeter of a rectangle is simply twice the sum of it's length and width. So we have the expression: 72 = 2*(L + W) And since we also know for this rectangle that it's length is 6 more than 4 times it's width, we have this equation as well: L = 6 + 4*W So let's determine what the dimensions are. Since we have a nice equation that expresses length in terms of width, let's substitute that equation into the equation we have for the perimeter and solve. So: 72 = 2*(L + W) 72 = 2*(6 + 4*W + W) 72 = 2*(6 + 5*W) 72 = 12 + 10*W 60 = 10*W 6 = W So we now know that the width is 6. And since we have an expression telling us the length when given the width, we can easily determine the length. So: L = 6 + 4*W L = 6 + 4*6 L = 6 + 24 L = 30 And now we know the length as well.</span>
5 0
3 years ago
Other questions:
  • ABCD is a rectangle. The measure of angle BCE is 4x-23 and the angle measure of angle DCE is 5+5x. Find the measure of angle BEC
    11·1 answer
  • ( 5^2<br> 2 ) <br> plus<br> 3^ 3 <br> 4
    5·1 answer
  • PLEASE HELP 10 POINTS
    11·1 answer
  • What is 9,235,009 rounded to the nearest hundred thousand
    12·2 answers
  • At a party to celebrate a successful school play, the drama club bought 9 large pizzas. Each pizza had s slices. All together, t
    15·1 answer
  • The temperature in a commercial freezer over four days are -2.36 F, 1.68F, -1.81F, and 0.67F what is the mean temperature of the
    14·1 answer
  • I need help with this problem
    11·1 answer
  • Evaluate the expression when a = -3 and c=4. a-3c​
    15·2 answers
  • Paul made $70 shoveling snow and $25 salting driveways. He set 35% of his total earnings aside for taxes. How much did he set as
    14·1 answer
  • 7,
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!