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
choli [55]
3 years ago
6

The average score on a standardized test is 750 points with a standard deviation of 50 points. If 2,000 students take the test a

t a local school, how many students do you expect to score between 700 and 800 points?
Mathematics
1 answer:
tatuchka [14]3 years ago
6 0
I the average score is 750 and standard deviation ( sigma ) is 50 points, then score 700 - 800 is between (750 - 1 sigma) and (750 + 1 sigma).
That is 34.1 % + 34.1 % = 68.2 % of the whole population. 
2,000 · 0.682 = 1.364 
We expect 1,364 students to score between 700 and 800 points. 
You might be interested in
Pls help !!! For my math class!
fiasKO [112]

Answer:

35 because they relevantly parrel which explains it alll

4 0
3 years ago
How many solutions does the following equation have 3(X + 9) = 2x + 54
kotykmax [81]

Answer:

One solution.

Step-by-step explanation:

3(x + 9) = 2x + 54

3x + 27 = 2x + 54

3x + 27 - 2x = 2x + 54 - 2x

x + 27 = 54

x + 27 - 27 = 54 - 27

x = 27

8 0
3 years ago
-6-5
tankabanditka [31]

The equation of the line that is parallel to the given line and passes through the point (-2,2) is:

y = \frac{x}{5} + \frac{12}{5}

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

When two lines are parallel, they have the same slope. In this problem, the given line passes through (-5,-4) and (0,-3), hence the slope is:

m = (-3 - (-4))/(0 - (-5)) = 1/5.

Hence the equation is:

y = \frac{x}{5} + b

When x = -2, y = 2, then:

y = \frac{x}{5} + b

2 = \frac{-2}{5} + b

b = \frac{12}{5}

Hence:

y = \frac{x}{5} + \frac{12}{5}

More can be learned about linear equations at brainly.com/question/24808124

#SPJ1

7 0
2 years ago
Please help me asap<br><br>​
dimaraw [331]
Okay so basically 1 + 5 = 180
and if we know 1 = 124 we can assume 5 = 56
and 5 = 4 SOOOO
4 = 56
4 0
3 years ago
Angle of elevation __________ Angle of depression
jeyben [28]
It is always B) equals the.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify the expression using the distributive property 42 + 7a
    5·1 answer
  • What is the best order-of-magnitude estimate for 0.00003?
    13·1 answer
  • Which is the formula for slope of a line.
    6·2 answers
  • - You study 4 hours per day and are in class 6 hours
    8·1 answer
  • Please help<br> help<br> help
    6·2 answers
  • Need to find the answer to 10 times (-2 ) -8
    7·2 answers
  • Solve the equation. 5 x minus 1 equals 14 A. x = 3 B. x = 4 C. x = 5 D. x = 15
    12·1 answer
  • -4y + 7z + 2y - 10z<br><br> please help!!!
    8·2 answers
  • Given m || n, find the value of x and y
    11·1 answer
  • WILL GIVE BRAINLIEST!!! Question in pic!!!!! Help pls!!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!