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
FrozenT [24]
2 years ago
8

A distribution of 1000 test scores has a mean of u = 287. Following standardization, what is the standard deviation for this dis

tribution?
Mathematics
1 answer:
blondinia [14]2 years ago
5 0

Answer:

c. σ = 1

Regardless of the original distribution, after standardizing to z-scores, the standard deviation is always 1.

Step-by-step explanation:

quizlet

You might be interested in
2y+4x=14 is it infinite no solution one solution ??????
lubasha [3.4K]
Solution I think I’m not 100% though:/
6 0
2 years ago
The table compares the number of songs and the number of videos Ruby's friends keep on their mobile phones.
VikaD [51]

Answer: yes it can be a function since the numbers are all repretes also it has a constance  

Step-by-step explanation

200         10

125          54

310         112

172         37

215        43

260       58

7 0
3 years ago
Read 2 more answers
A line through the origin has a slope of 1 / 3. Carlos thinks the slope of a perpendicular line at the origin will be 3.
OLEGan [10]

Answer:

Carlos is incorrect.

Step-by-step explanation:

We have been given that a line through the origin has a slope of \frac{1}{3}. Carlos thinks the slope of a perpendicular line at the origin will be 3.

We know that the slope of a perpendicular line to a given line is always negative reciprocal of the slope of the given line.

The slope of the perpendicular line at the origin will be negative reciprocal of \frac{1}{3}.

Let us find negative reciprocal of \frac{1}{3} as:

-\frac{1}{\frac{1}{3}}=-\frac{1\cdot 3}{1}=-3

Since the slope of a perpendicular line at the origin is -3, therefore, Carlos is incorrect.

4 0
3 years ago
I need help pleasssss
Yakvenalex [24]

Answer:

  3)  16.2

Step-by-step explanation:

The supplement to the 115° angle on the right is 65°, the same as the angle at upper left. The vertical angles at C are the same measure, so this tells you that the two triangles FCB and ACD are similar by the AA similarity postulate. That being the case, corresponding sides are proportional:

  CB/CD = CF/CA

  CB = CD·CF/CA = 7.2·21.6/9.6

  CB = 16.2

_____

When given two "point-to-point" triangles like this, quite often there is some sort of similarity relationship involved. First, you need to figure out what it is; then you need to make use of it as needed to answer the question being asked.

4 0
3 years ago
A librarian arranged some books on the shelf using the Dewey decimal system. Choose the group of book numbers that is listed in
lara [203]

The answer is C), 834, 834.19, 834.2, 834.29

I know this is late, but I hope it was helpful!

8 0
3 years ago
Other questions:
  • In each diagram abc has been tranfromed to yield abc
    12·1 answer
  • Which mesurment isnt eqivelent
    11·1 answer
  • the second angle in a triangle is five times as large as the first. The third angle is 2/3 as large as the first. What are the a
    8·1 answer
  • What does it mean to the rise over run when the slope is an integer? a. the rise number is one c. the run part of the slope is g
    14·1 answer
  • A, B, C, or D please and ty
    10·1 answer
  • What x and y equal to
    7·2 answers
  • Free po-ints and all you have to do is answer
    14·2 answers
  • #10) Cross multiply and divide to solve for x*<br> 2/5 = X/70
    10·2 answers
  • Judith’s parents invest money into a bank account to save up for college. The formula () = ,(.) can be used to find out how much
    11·1 answer
  • Myra took a math quiz last week. There were 30 problems on the quiz and Myra answered 60% of them correctly. How many problems d
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!