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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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A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 98m long and 76m wide. F
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Without the image, I assume the two semicircles are on each end of the rectangle.

Rectangle; A = lw
A = 98 x 76
A = 7,448 square meters

Put the two semicircles together to form a circle; A = π2^{2}
A = (3.14)(76^{2})
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3 years ago
What is the slope of a line of best fit if its equation is y = −2x + 3?
serg [7]
-2. or otherwise put as -2/1
8 0
3 years ago
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1
laiz [17]
It is a function because they are.
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3 years ago
In VWX x=41 cm v=17 cm and W=134 degrees. Find the length of w, the the nearest centimeter
pav-90 [236]

Answer:

54

Step-by-step explanation:

delta math.

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6 0
3 years ago
The average age of all students at a certain college is 22 years and the standard deviation is 2 years. What is the probability
Marianna [84]

Answer:

The probability that the average age of a randomly selected sample of 100 students will be less than 21.8 years is 0.159

Step-by-step explanation:

According to the given data we have the following:

mean = μ= 22

standard deviation = σ = 2

n = 100

μx = 22

σx=σ/√n=2/√100=0.2

Therefore, P( x < 21.8)=P(x-μx)/σx<(21.8-22)/0.2

=P(z<-1)

= 0.159

The probability that the average age of a randomly selected sample of 100 students will be less than 21.8 years is 0.159

3 0
3 years ago
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