1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marissa [1.9K]
3 years ago
8

A normal distribution has a mean of 60 and a standard deviation of 2. Determine the z-

Mathematics
1 answer:
a_sh-v [17]3 years ago
6 0

Answer: z score is -19

Work Shown:

x = 22 is the raw score

mu = 60 is the mean

sigma = 2 is the standard deviation

z = (x-mu)/sigma = formula to find z scores

z = (22 - 60)/2

z = -38/2

z = -19

The z score of -19 means we are 19 standard deviations below the mean. Anything beyond 3 standard deviations is often considered unusual/rare as most of the data in the normal distribution is within 3 standard deviations (approximately 99.7% of the distribution)

You might be interested in
If you give siri 0 cookies and she has 0 cookies but then gives you back a cookie where did she get the cookie from? if You and
Alchen [17]

Answer:

from space maybe.....,.................

7 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through<br> the points (-8, 8) and (8, –5)?
True [87]

Answer:

-13/16

Step-by-step explanation:

slope = rise/run = (-5 - 8)/(8 - (-8)) = -13/16

6 0
3 years ago
Melanie is designing a new board game, and is trying to figure out all the possible
son4ous [18]

Answer:

12 possible outcomes

Step-by-step explanation:

If she's spinning them at the same time, this is how you do it:

There are 3 possible outcomes on the first spinner- Walk, Run, and Stop.

There are 4 outcomes on the second spinner- Red, Green, Blue, and Orange.

Since they're being spun at the same time, we need to consider all of the possible combinations, for example:

Walk & Red.

Walk & Green.

Walk & Blue.

Walk & Orange.

And so on.  Each outcome on the first gets multiplied by 4, since there are 4 sections on the 2nd spinner.  Same thing if you did it and switched- the 4 sections on the second spinner would each have 3 different outcomes.

In conclusion, you'd just multiply 3×4, and there you go.  Or, you can think of it as 4+4+4, if that's a little easier to understand.

4 0
3 years ago
Find the common difference of the arithmetic sequence. 6, 9.4, 12.8, 16.2, . . .
klio [65]

Answer:

<h2>The answer is 3.4</h2>

Step-by-step explanation:

The sequence above is an arithmetic sequence

So in order to find the common difference subtract the previous term from the next term

So we have

<u>Taking 9.4 and 6</u>

That's

9.4 - 6 = 3.4

<u>Taking 12.8 and 9.4</u>

12.8 - 9.4 = 3.4

<u>Taking 16.2 and 12.8</u>

16.2 - 12.8 = 3.4

Since the common difference is the same for any of the terms taken , the common difference is 3.4

Hope this helps you

4 0
3 years ago
How do you answer this y=-x+2 on a graph
Inga [223]
To graph a linear equation, you need to know the slop and the y-intercept.

You can see that the y intercept is (0, -2), so that is where the line crosses the y axis.

The slope is -1. This means that from the y-intercept, you can keep going down 1 and right 1, or up 1 and left 1.
3 0
4 years ago
Other questions:
  • -175+5a+8a-10b+2c simplify Please help
    14·1 answer
  • The sixth term is 22 and the common difference is 6. What is the fifteenth term?
    12·1 answer
  • I need help with this page or any ???
    10·1 answer
  • Can we have a conversation ?Life’s boring
    5·1 answer
  • An important part of the customer service responsibilities of a cable company relates to the speed with which trouble in service
    5·1 answer
  • What is the mean absolute deviation <br><br> 3,5,8,1,4
    15·2 answers
  • 8.3 + x= 12.1 <br> I will love you if you can help me!​
    15·2 answers
  • Part II: Find the sine, cosine, and tangent ratios of &lt;y ​
    15·1 answer
  • What is the absolute value of |4x|- 12 = 4​
    14·1 answer
  • A dealer can fix 30 dirt bikes in 5 hours. What is the unit rate per hour? How many dirt bike can they
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!