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
3241004551 [841]
3 years ago
9

The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 91 inches, and a standard d

eviation of 14 inches. what is the probability that the mean annual precipitation during 49 randomly picked years will be less than 93.8 inches?
Mathematics
1 answer:
Vesna [10]3 years ago
4 0
The sample std. dev. will be (14 inches) / sqrt(49), or (14 inches) / 7, or 2 inches.

Find the z score for 93.8 inches:
       93.8 inches - 91.0 inches          2.8 inches
z = ------------------------------------- = ----------------- = 1.4
                    2 inches                         2 inches

Now find the area under the standard normal curve to the left of z = +1.4.

My calculator returns the following:

normalcdf(-100,1.4) = 0.919.  This is the probability that the mean annual precipitation during those 49 years will be less than 93.8 inches.
 
You might be interested in
Is the function g(x)=9<br> x+1 linear or nonlinear?
Licemer1 [7]
It is a linear function
3 0
3 years ago
What is the slope intercept ?<br><br> PLEASE HELP ME ITS URGENT !
Elden [556K]

Answer:

y=mx+b

Step-by-step explanation:

that is the equation

8 0
2 years ago
Read 2 more answers
What is the value of y when x = 1 y = -1 y = -1 y = 2 y = 2 y = 5 y = 5 y = 3
storchak [24]

Answer:

where does it stopes

Step-by-step explanation:

3 0
2 years ago
Write a system of linear equations that has the ordered pair (1,4) as it's solition
Lemur [1.5K]

The required system of equations is x+y=5\\x-y=-3

Step-by-step explanation:

We need to write a system of linear equations that has the ordered pair (1,4) as it's solution.

It means we need to find  system of linear equations, which after being solved gives x=1 and y=4

Let the system of equations be:

x+y=5\\x-y=-3

I have made equations such that adding x+y gives 5 i,e (1+4=5) and subtracting x-y gives -3 (1-4=-3)

Now solving this system of equations to find value of x:

x+y=5\,\,eq(1)\\x-y=-3\,\,eq(2)

Adding eq(1) and eq(2)

x+y=5\\x-y=-3\\-----\\2x=2\\x=1

Putting value of x=1 into eq(1) to find value of y

x+y=5\\1+y=5\\y=5-1\\y=4

The solution set after solving system of equations is (1,4).

The required system of equations is x+y=5\\x-y=-3

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

7 0
2 years ago
Pls hurry i really i need to finish
Thepotemich [5.8K]
0,0
1,2
2,4
3,6
4,8
There u go hope u get it done
5 0
1 year ago
Read 2 more answers
Other questions:
  • Question on a picture<br>​
    7·1 answer
  • Examine the division problem
    15·2 answers
  • The mean and standard deviation for number of robberies in the U.S. from 2000 to 2015 are x̄ = 354,718 and sx = 28,803. The mean
    7·1 answer
  • Will give Brainliest
    5·1 answer
  • Write the equation of the line that passes through the points (1, 1) and (2, 4). Write your answer in slope-intercept form
    13·1 answer
  • This is just a gift for armys. i left a kiyoot pic of jimin..
    7·2 answers
  • A hexagon will be dilated on a coordinate grid to create a smaller hexagon The hexagon is dilated using the origin as the center
    6·2 answers
  • Which of the following represents the total cost x shirts bought at a cost of (x+5) dollars each?
    11·1 answer
  • Decide whether the sequence 4,10,20,34,52 ....... is a linear model,
    8·1 answer
  • Which is a perfect square?<br> O 5<br> 0001<br> O<br> 36<br> 44
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!