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
Roman55 [17]
3 years ago
15

The summer income of the 3,408 students at Centennial High School last year was

Mathematics
1 answer:
Olin [163]3 years ago
6 0

You want to find

P(1000 < X < 3000)

where X is normally distributed with mean 1751 and standard deviation 421. Transform X to Z, so that it follows the standard normal distribution with mean 0 and standard deviation 1 using the relation

X = 1751 + 421Z   ==>   Z = (X - 1751)/421

Then

P(1000 < X < 3000) = P((1000 - 1751)/421 < (X - 1751)/421 < (3000 - 1751)/421)

… ≈ P(-1.783 < Z < 2.967)

… ≈ P(Z < 2.967) - P(Z < -1.783)

… ≈ 0.9985 - 0.0373

… ≈ 0.9612

so that approximately 96.1% of the students fall in this income range.

You might be interested in
Create two whole number division problems
AlekseyPX
98 divided by 2 equals 49 55 divided by 5 equals 11
3 0
4 years ago
Read 2 more answers
Pls help construct this for meee
matrenka [14]

Answer:

See the image for solution.

Brainlist please

8 0
3 years ago
Read 2 more answers
Circle O has a circumference of approximately 28.3 cm. Circle O with radius r is shown. What is the approximate length of the ra
Marrrta [24]

Answer:

4.5cm

Step-by-step explanation:

Circumference = 2\pir

28.3=2\pir

28.3/2\pi=r

4.456

7 0
3 years ago
.In which situation could the quotient of
saveliy_v [14]

Answer:

Option D -  8 children

Step-by-step explanation:

Twenty four divided by eight the equation is irelated to which MCQ

24/3 = 8

Option D, A cookie jar contains 24 cookies. Each child receives 3 cookies.

The right answer is 24 cookies that are in a jar eaten by children,

If each child get 3 cookies,  

Hence, 24/3 the answer will be = 8

Means 8 children are there to eat 3 cookies that is 24.

3 0
3 years ago
Samantha wants to put a fence around her backyard. She buys the fence in 6-foot sections and needs 12 sections. She spends a tot
Solnce55 [7]
6 foot =850
850÷6=141.667
then for 12 section
141.667x 12=1700 or

you find the ratio of 6:12
= 1:2
therefore 2×850=1700
5 0
3 years ago
Other questions:
  • 9^4x=81? I need to solve this math problem nd idk how to
    11·2 answers
  • I need help with this. I don't understand
    13·1 answer
  • How much power is used if a force of 35 newtons is used to push a box a distance of 20 meters in 5 seconds
    6·1 answer
  • What is the answer to 2+b=7
    8·1 answer
  • An experienced cashier at a grocery store takes 2 seconds to scan each item and 40 seconds to process the customer's payment. 1)
    14·1 answer
  • A tank is measuring 3 in wide by 5 in deep is 10 in tall. If there are 2 cubes with 2 inches sides in the tank, how much water i
    13·1 answer
  • What is the simplified form of this expression?
    7·1 answer
  • I need help finding x≈.... this is for a important grade so pls help really ​
    8·1 answer
  • HELP 20 POINTS PLZ RAHHHH
    14·1 answer
  • Teresa runs 3 miles in 25 minutes. At the same rate, how many miles would she run in 20 minutes?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!