WILL MARK BRAINLIEST what is the standard deviation for the normal distribution shown at the right?

Mathematics

1 answer:

MrRissso [65]2 years ago

8 0

Answer: 916. Because if you do 856+60=916.

Step-by-step explanation: The standard normal distribution is a normal distribution with a mean of zero and standard deviation of 1. Formula: and natural statistics x and x2. The dual expectation parameters for normal distribution are η1 = μ and η2 = μ2 + σ2.

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Find the equation of a line parallel to x=−5 that contains the point (3,−2)

Troyanec [42]

Answer:

4y+x = -4

Step-by-step explanation:

For the line x = -5, this is an x intercept written as (-5, 0)

Next is to find the equation of a line passing through (-5,0) and (3, -2)

Slope m = -2-0/3-(-5)

m = -2/8

m = -1/4

Get the y intercept

Substitute m =-1/4 and (-5,0) into the expression y - mx+c

0 = -1/4(-5) + c

0 = 5/4 + c

c = -5/4

Get the required equation;

y = -1/4 x - 5/4

4y = -x - 4

4y+x = -4

This gives the required equation

3 0

2 years ago

What is the value of x that makes the given equation true?

vlabodo [156]

Answer: x=-4

. . . . .

4 0

2 years ago

Read 2 more answers

A bowl contains 6 green grapes, 10 red grapes, and 8 black grapes. Which of the following is the correct

irina1246 [14]

Using the it's concept, the correct calculation for the probability of choosing a red grape and then without putting the red grape back into the bowl, choosing a green grape is:

$p = \frac{5}{2} \times \frac{1}{23} = \frac{5}{46}$

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

In this problem, we have that there is a total of 6 + 10 + 8 = 24 grapes. For the first grape, 10 are red, hence the probability that the first grape is red is:

$pR = \frac{10}{24} = \frac{5}[12}$

For the second grape, considering that the first was red and was removed, there will be 23 grapes, out of which 6 will be green, hence the probability that the second grape is green is:

$pG = \frac{6}{23}$