answer.
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
Butoxors [25]
2 years ago
7

The mean sat verbal score is 486, with a standard deviation of 95. use the empirical rule to determine what percent of the score

s lie between 391 and 486. (assume the data set has a bell-shaped distribution.)

Mathematics
1 answer:
Pavel [41]2 years ago
8 0
Find the z-scores for the two scores in the given interval.

z=\frac{x-\mu}{\sigma}

For the score x =391, z=\frac{391-486}{95}=\frac{-95}{95}=-1.

For the score x = 486, z=\frac{486-486}{95}=0

Now you want the area (proportion of data) under the normal distribution from z = -1 to z = 0. The Empirical Rule says that 68% of the data falls between z = -1 to z = 1. But the curve is symmetrical around the vertical axis at z = 0, so the answer you want is HALF of 68%.

You might be interested in
Assume that triangle GHI is congruent to LMN. Which of the following congruence statement are correct? check all that apply
Airida [17]
If two triangles are congruent, then they have equal corresponding angles and also the sides.
Therefore, if GHI is congruent to LMN, then GH =LM, HI=MN and GI=LN, and also angle G=angle L, Angle H=angle M, while angle I = angle N, therefore the correct answers is a) ∠M= ∠H, c) ∠L=∠G. and e)IH=NM. 
5 0
2 years ago
Read 2 more answers
A line passes through the points (15,−13) and (16,−11). Hollis writes the equation y+13=(x−15) to represent the line. Which answ
Andru [333]

The equation formula is y - y1 = m(x-x1)

Using the first point for x1, y1:

Y +13 = m(x-15)

M is the slope which is the change in y over the change in x:

M = -11–13 / 16-15 = 2/1 = 2

The equation becomes y +13 =2(x+15)

The answer is:

He incorrectly wrote the slope in his equation. He should have written y+13=2(x−15).

8 0
2 years ago
A study determined that the average student who graduates takes 58 months to graduate from college with a bachelor’s degree and
Alona [7]
B is the answer a b c and d is the answer
7 0
2 years ago
Which transformation of AB will produce a line segment A’B that is parallel to AB
tangare [24]

Answer:

Step-by-step explanation:

A

7 0
2 years ago
Explain how complex fractions can be used to solve problems involving ratios
Kisachek [45]
When you have ratios and some unknowns you can create complex fractions from them.Bring them to the same denominator and solve for X.
8 0
2 years ago
Other questions:
  • Ryan runs 100 m two times. His times were 14.19 s and 13.78 s. Daniel runs 100 m two times. His times were 15.77 s and 16.24 s.
    13·2 answers
  • The average marks of shahid first four papers is 88 how much mark should he get in the fifth paper so that the average of five p
    10·2 answers
  • In the figure, m< DBE = 50. Find m< BED
    6·1 answer
  • A jump rope held stationary by two children, one at each end, hangs in a shape that can be modeled by the equation h=0.01x^2 - x
    6·2 answers
  • Given: △AKL, m∠K=90° AK = KL = 2 M∈ AL , AM = ML Find: ML and KM
    11·2 answers
  • A shoe manufacturer collected data regarding men's shoe sizes and found that the distribution of sizes exactly fits the normal c
    11·1 answer
  • Distributive property of 3x50
    5·2 answers
  • At 12pm, the temperature was 57o F. By 5pm, the thermometer read 36o F. Assuming a constant change in temperature, calculate and
    14·1 answer
  • The diameter of the dot produced by a printer is normally distributed with a mean diameter of 0.002 inch and a standard deviatio
    5·1 answer
  • A basketball player's "hang time" is the amount of time the player remains suspended in the air after a jump. The height (in met
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!