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
adelina 88 [10]
3 years ago
10

The SAT mathematics scores in the state of Florida for this year are approximately normally distributed with a mean of 500 and a

standard deviation of 100.
Using the empirical rule, what is the probability that a randomly selected score lies between 500 and 700? Express your answer as a decimal.
Mathematics
2 answers:
Greeley [361]3 years ago
8 0
<u></u><u>The correct answer is 47.5%, or 0.475.</u>

Explanation:
The empirical rule states that in any normal distribution:

68% of data will fall within 1 standard deviation of the mean;
95% of data will fall within 2 standard deviations of the mean; and
99.7% of data will fall within 3 standard deviations of the mean.

The mean is 500 and the standard deviation is 100.  This means that 700 is 2 standard deviations away from the mean:

(700-500)/100=200/100=2.

We know that 95% of data will fall within 2 standard deviations from the mean.  However, included in the 95% is data less than the mean and greater than the mean.  Since we are only concerned with the scores from 500 to 700, we only want the half that is greater than the mean:

95/2 = 47.5%, or 0.475.
Grace [21]3 years ago
3 0

Answer:

The answer is 0.95 or .95

Step-by-step explanation:

I hope this helps!!!! (=

You might be interested in
Given f(x) = 13x-3 what is f(-3)
sashaice [31]

Answer:

-42

Step-by-step explanation:

13(-3)-3

=-39-3

=-42

Hope this helps!

7 0
3 years ago
Without adding, find the sum (1+3+5+7+9+11+13+15+17)​
lara31 [8.8K]

Answer:

Hey buddy, here is your answer. Hope it helps u.

Step-by-step explanation:

Without adding we can find out the sum. We just need to count how many numbers are there. In this case there are 9. Then we need to sqau the number. So 9 square=81. So without adding the sum the answer is 81.

5 0
3 years ago
Read 2 more answers
Hi please help i’ll give brainliest
stiks02 [169]

Answer:

Choice D

Step-by-step explanation:

I believe that it is Choice D. Due to the fact that the moons orbit around Earth is inclined around 5 degrees, not allowing an eclipse to happen every New or Full Moon. Most of the time, the Sun, Earth, and Moon don't line up precisely enough to cause an eclipse.

5 0
2 years ago
(a) Complete the table of values for the graph x + y = 6
djyliett [7]

Answer:

(0,6)

(1,5)

(2,4)

(3,3)

(4,2)

Step-by-step explanation:

To solve this table first convert the equation to slope-intercept form (y=mx+b), to do this solve for y in the equation. The slope-intercept form is y=-x+6, where -1 is the slope and 6 is the y-intercept. Then from that, you can get your first point, because you know the y-intercept is 6, therefore when x equals 0 y must be 6. Next, because the slope is -1 that means the y-value decreases by 1 every time the x-value increases by 1. So to find the rest of the y-values simply subtract 1 from the previous y-value.

4 0
3 years ago
HELP PLEASE ASAP!!!!!!!!
Nadya [2.5K]

B

C

unsure on last one

8 0
3 years ago
Read 2 more answers
Other questions:
  • 25 POINTS!!!!!!!!! ALGEBRA 2 STATISTICS QUESTION!!!!!!!!!!!!!!
    14·1 answer
  • If G has n vertices and is regular of degree r, how many edges has G?
    6·1 answer
  • How many 0.2 liter glasses of water are contained in a 3.6 liter pitcher
    12·1 answer
  • Line m passes through the points (4, 1) and (7, 3) while line n passes through the points (-3, 5) and (-9, 1). Which statement a
    8·3 answers
  • If the average adult produces $110,000 of output per year, how much output is lost annually as a result of adult deaths from sec
    8·1 answer
  • Which best describes the transformation that occurs from the graph of f(x) = x2 to g(x) = (x + 3)2 + 4?
    9·2 answers
  • The answers is what I got but it said it was wrong. can anyone hhelp find the right answer?​
    10·2 answers
  • ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup ketchup
    12·2 answers
  • Will Mark Brainliest! What are the coordinates of point A?
    13·2 answers
  • Evaluate.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!