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Elina [12.6K]
3 years ago
11

Test scores for a Statistics class have a mean of 78 with a standard deviation of 6. Suppose a student gets an 81 on that test.

What is the z-score for that grade?
Mathematics
1 answer:
Ostrovityanka [42]3 years ago
5 0

Answer:

0.3209

in case you dont know  A z-score tells you if the distribution it comes from is normal.

Step-by-step explanation:

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PLEASE ANSWER ASAP!!!!!!!!!!
IgorLugansk [536]

The equation of the sin function is y = 3sin(πx/2) + 1, and the graph of the function is shown in the picture.

<h3>What is sin function?</h3>

It is defined as a function that is sinusoidal in nature, and it has a domain of all real numbers and lies between the [a, a]where is the amplitude of the function.

As we know the sin function is represented by:

y = Asin(Bx) + C

Here,

A = The amplitude  =  3

C = The vertical shift  = 1

B - The period in terms of π

B = 2π/amplitude

B = 2π/4

B = π/2

The becomes:  

\rm y = 3sin(\dfrac{\pi }{2}x)+1

Thus, the equation of the sin function is y = 3sin(πx/2) + 1, and the graph of the function is shown in the picture.

Learn more about the sin function here:

brainly.com/question/14397255

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3 0
2 years ago
Please help me!!!!!!!!!!!!!!!!!
wlad13 [49]

Answer:

The answer is C.

Step-by-step explanation:

3 0
3 years ago
How do you find the constant of variation when y=-(2/3) and x=3
Katyanochek1 [597]
You can't. If you think about the straight line on a graph, those numbers
describe a single point that the line goes through, and they don't tell you
anything about the slope of the line, or where it crosses the x-axis or the
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6 0
3 years ago
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Please help been stuck on this for 40 minutes
choli [55]

we have given y interms of x.

we have given that add 2 to x.

which means y=x+2

so we have x=2 ,y=x+2=2+2=4.

so when x=2 ,y=4.

x=4,y=x+4=4+2=6..

y=x+2,y=6+2=8.

3 0
3 years ago
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How many centimeters are there in 1/5 of an inch
Lynna [10]

Answer:

0.508

Step-by-step explanation:

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