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seraphim [82]
2 years ago
9

The graph shows the probability distribution of a random variable.

Mathematics
1 answer:
Natasha2012 [34]2 years ago
5 0
The answer is 0.50.

P(4<=X<=8)=P(x=4)+ P(x=5)+ P(x=6)+ P(x=7)+ P(x=8)= 0.05+ 0.15+0.15+0.15 +0 = 0.50

Notice that in 8 the line touches the x axis so it’s corresponding probability is 0.
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HELP PLZ!!!i cant figure this out and dont worry about what else im typin it wont let me continue without having 20 word typed s
morpeh [17]

Answer:

The length is 42 inches and the width is 14 inches

Step-by-step explanation:

You know the width is 1/3 of the length, and the length is basically the longer side of a rectangle. The width is y-4, so multiply using distributive property to get 3y-12.

You now know that the 2y+6 is equal to 3y-12, so you add 12 to both sides using additive property of addition to get 2y+18=3y.

Then you subtract 2y from both sides to get the unit value of y.

Y is equal to 18.

Then you can plug 18 into the y's to get

2(18)+6 which is 36+6 = 42

18-4   = 14

There you go.

The length is the longer side which is 42 inches and the width is 14 inches

Hope this helps!

6 0
3 years ago
Interest centers around the life of an electronic component. Let A be the event that the component fails a particular test and B
nekit [7.7K]

Answer: a. 0.61

b. 0.37

c. 0.63

Step-by-step explanation:

From the question,

P(A) = 0.39 and P(B) = 0.24

P(success) + P( failure) = 1

A) What is the probability that the component does not fail the​ test?

Since A is the event that the component fails a particular test, the probability that the component does not fail the​ test will be P(success). This will be:

= 1 - P(A)

= 1 - 0.39

= 0.61

B) What is the probability that a component works perfectly well (i.e., neither displays strain nor fails the test)?

This will be the probability that the component does not fail the​ test minus the event that the component displays strain but does not actually fail. This will be:

= [1 - P(A)] - P(B)

= 0.61 - 0.24

= 0.37

C) What is the probability that the component either fails or shows strain in the test?

This will simply be:

= 1 - P(probability that a component works perfectly well)

= 1 - 0.37

= 0.63

3 0
3 years ago
can anyone please help me, find the length of side x in simplest radical form with a rational denominator.
ANEK [815]
X is 2.3094
Or 16/3
***/=root***
6 0
3 years ago
Which of the following expressions is equivalent to the one above? 42x + 21.
stiks02 [169]

Answer:

21(2x+1)

Step-by-step explanation:

42x+21=21(2x+1)

6 0
3 years ago
Help if your good at math please!
TiliK225 [7]

Answer:

40% apples

train going 80 miles per hour

5 0
3 years ago
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