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
WITCHER [35]
3 years ago
9

A normally distributed population has a mean of 250 pounds

Mathematics
1 answer:
Dima020 [189]3 years ago
6 0

Answer: 0.9746

Step-by-step explanation:

Given : A normally distributed population has a mean of 250 pounds and a standard deviation of 10 pounds.

i.e. \mu=250 \sigma=10

Sample size : n= 20

Let \overline{x} sample mean values.

Then, the probability that this sample will have a mean value between 245  and 255 be

P(245

Hence , the probability that this sample will have a mean value between 245  and 255 is 0.9746 .

You might be interested in
A flowchart proof
Whitepunk [10]

Answer: uses a visual representation of the logical flow of steps needed to reach a conclusion.

Step-by-step explanation:

A flowchart proof is a visual representation that is made of boxes with which arrows are used to show the flow of steps which take place. It uses a visual representation of the logical flow of steps needed to reach a conclusion.

The true facts which are the statements, will be placed in the boxes that are drawn. The arrows in flowchart proof shows the progression of statements made.

4 0
3 years ago
What is the slope of the line that passes through the points (2, 8) and (6, 12)?
Ksenya-84 [330]
12-8 over 6-2= 4 over 4= 1

5 0
3 years ago
9 is 12 percent of what number? ( show your work)
Rasek [7]
For this question, we want to find out what 9 / 12 equals as a percent or x / 100. Therefore, we have a proportion here and can say: 9/12 = x/100 Now, at this point, we can cross multiply to get: 900 = 12x Now, divide both sides by 12 to get x alone and find that: x = 75 <==== FINAL ANSWER
so 9 is 12% of 75!
I hope that helps you out! Please let me know if you have any other questions!
3 0
3 years ago
During a snowstorm, snow fell at a constant rate for a number of hours. Then it stopped snowing for a number of hours. Then it s
oee [108]

Answer:

x=45

Step-by-step explanation:

weights and routes

weights and routes

weights and routes

VvvvVV

6 0
3 years ago
Estimate the sum of 400 is seven and 310
Soloha48 [4]
What does dat mean.Sum of ''400 Is seven''
3 0
3 years ago
Other questions:
  • Micheal plays 1/5 of a song in 1/15 of a minute how Much time will it take for him to play the entire song?
    8·2 answers
  • If BC= 6.5, CD= 7.8, and AD=12.2, find AB to the nearest tenth
    9·1 answer
  • Simplify -9(2x-7)+10
    14·2 answers
  • Pat needs to paint an 8 ft x 36 ft rectangular wall. what is the area that she paints?
    11·1 answer
  • ) a rectangular box has length 12 inches, width 20 inches, and a height of 7 inches. find the angle between the diagonal of the
    6·1 answer
  • What is the inverse function of f(x) = (x+4)/(x-2) ?
    13·1 answer
  • Need help ASAP <br> Mathswatch
    13·2 answers
  • 6.71/(1.15)^4 doesn't equal 5.73
    7·2 answers
  • How many cups = 3 5/8 gallons
    12·1 answer
  • I NEED HELP ASAP! PLEASEEE I WILL GIVE YOU EVERYTHING AND GOOD REVIEWS!!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!