3 years ago

The standard normal distribution has a mean of and a standard deviation of

Mathematics

1 answer:

Anna007 [38]3 years ago

3 0

The standard normal distribution has a mean of 0 and a standard deviation of 1

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What is the slope of the line that passes through the points (8,8) and (20, -2)?

Sindrei [870]

Answer:

-5/6

Step-by-step explanation:

Use slope intercept form: $\frac{y_2-y_1}{x_2-x_1}$

$\frac{-2-8}{20-8}$ = $\frac{-10}{12}$ = -5/6

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3 years ago

3. What three numbers are the Pythagorean triple generated by using 4 for x and 1 for y. Remember to use the formulas:

Doss [256]

Given:

Consider the three number are given by:

$a=x^2-y^2$

$b=2xy$

$c=x^2+y^2$

To find:

The three numbers are the Pythagorean triple generated by using 4 for x and 1 for y.

Solution:

We have,

$a=x^2-y^2$

$b=2xy$

$c=x^2+y^2$

Substituting 4 for x and 1 for y, we get

$a=4^2-1^2$

$a=16-1$

$a=15$

Similarly,

$b=2(4)(1)$

$b=8$

And,

$c=4^2+1^2$

$c=16+1$

$c=17$

The three three numbers are the Pythagorean triple are 8,15 and 17.

Therefore, the correct option is C.

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3 years ago

2. Jules conducted a survey and asked 100

Tanzania [10]

"Positive association" would be the answer.

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2 years ago

Twelve people are given two identical speakers, which they are asked to listen to for differences, if any. Suppose that these pe

Karolina [17]

Answer:

Probability, P(X=3)=0.05371

Step-by-step explanation:

The experiment consists of 12 Bernoulli trials,n=12

Where sucess is defined with difference between the speakers and failure is defined with no difference between the speakers

Since people are guessing,the Probability P of sucess= 1/2

Therefore P(X=3) = b(3; 12, 0.5) = (12/3) (0.5)^3× (0.5)^9

P( X=3) = 0.0537

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3 years ago

Which ordered pairs are solutions to the inequailty 2x + y > -4

Sedbober [7]

A, B, and D are the correct answers

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