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dolphi86 [110]
3 years ago
13

Complete the following statement. Write

Mathematics
1 answer:
photoshop1234 [79]3 years ago
5 0
<span>Never
Trapezoids have exactly one pair of parallel sides. 
Parallelograms have two pairs of parallel sides.</span>
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First, decide whether the distribution is a discrete probability distribution, then select the reason for making this decision.
Lyrx [107]

It is not a <u>probability distribution</u>, as the sum of the probabilities is more than 1, thus, the correct option is No, considering that:

c) Since the sum of the probabilities is not equal to 1.

-----------------------------------------

For the sequence (x, P(X = x)) representing a probability distribution, it is needed that:

  • All probabilities are between 0 and 1, that is, for all values of x, 0 \leq P(X = x) \leq 1.
  • The sum of all probabilities is 1, that is: \sum_{i = 1}^n P(x_i) = 1

In this problem, the sum of the probabilities is:

\sum_{i = 1}^n P(x_i) = 0.39 + 0.69 + 0.12 = 1.20

<u>Sum is not 1,</u> thus it is not a probability distribution, and the correct option is:

c) Since the sum of the probabilities is not equal to 1.

A similar problem is given at brainly.com/question/24858659

8 0
3 years ago
Sarah walks 1/4 mile every 1/2 hour​
padilas [110]

Answer:

To find ratio mph (miles PER hour), we can write the information given as a fraction. (The miles will go on top and the number of hours will go on the bottom).

1/2=.5 miles

1/4-.25 miles

So we have .5miles/.25 hours

From here, we can do 2 things: divide to get 2miles/hour or you can see that you can reduce the fraction (.5/2=.25 and .25/.25=1). So again we get 2/1 miles per hour OR 2 mph

Hope that helps,

Gracie

6 0
3 years ago
Read 2 more answers
How do you make x+2y=6 a linear equation
madreJ [45]
Subtract X
2y=-x+6
Then divide by 2
Y=-1/2x+3
5 0
3 years ago
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melissa drew a scale drawing of a city. a neighborhood park is 36 inches wide in the drawing. the actual park is 60 yards wide.
SashulF [63]

The scale of the drawing by using proportion is 3 : 5.

According to the given question.

Melissa drew a scale drawing of a city.

The width of the park in the drawing is 36 inches.

And the actual width of the park is 60 yards.

As we know that, a proportion is a fraction of a total amount, and the measures are related using a rule of three.

Therefore, the scale of the drawing by using proportion

= 36iches/ 60 yards

= 3/5

= 3 : 5

Hence, the scale of the drawing by using proportion is 3 : 5.

Find out more information about scale here:

brainly.com/question/28060140

#SPJ4

5 0
2 years ago
In how many ways can 3 boys and 3 girls sit in a row if the boys and girls are each to sit together?
goldenfox [79]
The answer would be 36 because theres 6 people and 6 seats so 6*6 = 36
5 0
4 years ago
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