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Aleksandr-060686 [28]

3 years ago

5

Suppose you have a normally distributed set of data pertaining to a standardized test. The mean score is 500 and the standard de

viation is 100. What is the z-score of 450 point score?

1 answer:

Zinaida [17]3 years ago

4 0

I don't know the answer but I am sure you could go on Khan Academy to find the answer and a tutorial fully explaining how to solve it in the future.

You might be interested in

Is 19 and 95 co-prime

Makovka662 [10]

Answer:

No

Step-by-step explanation:

19 is a prime number but 95 is not.

95= 1x95

5x19

8 0

3 years ago

Read 2 more answers

Slope 8 ; through (4,3)

Reptile [31]

Answer:

y=8x-29

Step-by-step explanation:

Since we know the slope (m) is 8, we can plug it in the slope-intercept formula y=mx+b, making y=8x+b.

Now we need to find the y-intercept (b). To do that, you would need to plug in the points given to you, which were (4,3).

x=4, y=3... so 3=8(4)+b

Now you can solve for the variable b to find the y-intercept.

3=8(4)+b, multiply...

3=32+b, subtract 32 on both sides...

-29=b

Therefore, the y-intercept, or b, is -29.

The equation would be y=8x-29

7 0

2 years ago

The length of a rectangle is twice the width. Find the width if the perimeter is 60 centimeters. Define a variable, write an equ

-Dominant- [34]

width = w

length = 2w

perimeter = 2w + 2 l

perimeter = 2w +2(2w)

60 = 2w + 4w

60= 6w

60=6w

w = 60/6 = 10

length = 10x2 = 20

10+10+20+20 = 60

3 0

3 years ago

Read 2 more answers

An arithmetic sequence is given below.

Mashcka [7]

Given that $a_1=24$ and $a_2=17$ , if $a_n$ is an arithmetic sequence, then the common difference between successive terms is $d=a_2-a_1=17-24=-7$ .

You then have

$a_2=a_1+d$
$\implies a_3=a_2+d=a_1+2d$
$\implies a_4=a_3+d=a_1+3d$
$\implies \cdots\implies a_n=a_{n-1}+d=\cdots=a_1+(n-1)d$

So the explicit formula for the $n$ th term is

$a_n=24-7(n-1)$

3 0

3 years ago

Helllllllllllllllllllloooooo

Zinaida [17]

Answer:

hello

Step-by-step explanation:

4 0

2 years ago