The mean of the discrete distribution that models this situation is of 2.98.
<h3>What is the mean of a discrete distribution?</h3>
The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.
Considering the table, the probability distribution is given by:
Hence the mean is given by:
E(X) = 4 x 0.4 + 3 x 0.32 + 2 x 0.17 + 1 x 0.08 + 0 x 0.03 = 2.98.
More can be learned about the mean of a discrete distribution at brainly.com/question/27899440
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18 : 3 = 6 : 1
Solution:
Try to reduce the ratio further with the greatest common factor (GCF).
The GCF of 18 and 3 is 3
Divide both terms by the GCF, 3:
18 ÷ 3 = 6
3 ÷ 3 = 1
The ratio 18 : 3 can be reduced to lowest terms by dividing both terms by the GCF = 3 :
18 : 3 = 6 : 1
Therefore:
18 : 3 = 6 : 1
Answer:
65.3%
Step-by-step explanation:
what we want: p(2)+p(3)+p(4)
which equal 65.28%
which rounds to
65.3%
Answer:
D
Step-by-step explanation:
Recall that the area of a triangle is given by:
In this case, the base is <em>x</em> and the height is <em>y</em>. Hence:
We can write the following ratios:
Solve for <em>x</em> and <em>y</em>:
Substitute:
And simplify. Hence:
In conclusion, our answer is D.
Answer: 5
Step-by-step explanation:20 times .25
