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2 years ago

What is the median of the following numbers? 6, 4, 1, 9, 3, 8, 3, 5, 10

Mathematics

2 answers:

svetlana [45]2 years ago

6 0

Answer:

Step-by-step explanation:

5 is in the middle when you put them in numerical order

yawa3891 [41]2 years ago

6 0

Answer:

Step-by-step explanation:

When you order the values: 1, 3, 3, 4, 5, 6, 8, 9, 10

5 would be the number in the middle.

I hope this helps!

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A study conducted at a certain high school shows that 72% of its graduates enroll at a college. Find the probability that among

mixas84 [53]

Answer:

$P(X \geq 1) =1-P(X$

And we can use the probability mass function and we got:

$P(X=0)=(4C0)(0.72)^0 (1-0.72)^{4-0}=0.00615$

And replacing we got:

$P(X \geq 1) = 1-0.00615 = 0.99385$

Step-by-step explanation:

Let X the random variable of interest "number of graduates who enroll in college", on this case we now that:

$X \sim Binom(n=4, p=0.72)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

We want to find the following probability:

$P(X \geq 1)$

And we can use the complement rule and we got:

$P(X \geq 1) =1-P(X$

And we can use the probability mass function and we got:

$P(X=0)=(4C0)(0.72)^0 (1-0.72)^{4-0}=0.00615$

And replacing we got:

$P(X \geq 1) = 1-0.00615 = 0.99385$

5 0

3 years ago

(-9x - 4) - (4x2 + 2x - 7)

yaroslaw [1]

Answer:

I assume you meant 4x^2

So the answer in simplified form is -4x^2-11x+3

6 0

3 years ago

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Two cooling fans are installed in some laptop computers. Suppose the reliability of each cooling fan is 0.92. What percent impro

wlad13 [49]

Answer:

Step-by-step explanation:

Given that:

Reliability of each = 0.92

r = 0.92

1 - (1 - r)(1 - r) = 1 - (0.08)(0.08) = 1 - 0.0064 = 0.9936

Percentage improvement :

1 - (0.9936) / r

1 - (0.9936 / 0.92)

1 - 1.08

= - 0.08

= 0.08 / 100 = 8%

5 0

2 years ago

What is the slope of the line 4x+y=-9

olga55 [171]

Answer:

The slope of this line is -4

Step-by-step explanation:

To find the slope, you need to solve the equation for y.

4x + y = -9

y = -4x - 9

The slope in this form is always the coefficient of x, making it -4.

8 0

3 years ago

HELP

strojnjashka [21]

Answer: Answer is f(x) = 25x4 - 7x2 + x + 4

Step-by-step explanation:

8 0

3 years ago

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