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
attashe74 [19]
3 years ago
9

Suppose the population of all public universities shows the annual parking fee per student is $110, with a standard deviation of

$18. if a random sample size of 49 is drawn from the population, the probability of drawing a sample with a sample mean between $100 and $115 is _______.
Mathematics
1 answer:
vampirchik [111]3 years ago
3 0
The probability would be 0.9738.

We first find the z-score for each end of this interval:

z = (x-μ)/(σ/√n) = (100-110)/(18/√49) = -10/(18/7) = -3.89

z = (x-μ)/(σ/√n) = (115-110)/(18/√49) = 5/(18/7) = 1.94

Using a z-table (http://www.z-table.com) we see that the probability that a score is less than the first z-score is 0.  The probability under the curve to the left of, less than, the second z-score is 0.9738.  Subtracting these we find the area between them:
0.9738 - 0 = 0.9738.
You might be interested in
Using the formula below, find F, when f = 1000 and r = 8
Kaylis [27]

Answer: 15.625

Step-by-step explanation:

F = 1000/(8^2) = 1000/64 = 15.625

5 0
3 years ago
Read 2 more answers
2.199 rounded to the nearest whole number
steposvetlana [31]
Rounding 2.199. The tenths digit is 1, which is 4 or less, so you will round down. Re-write 2.199 without the decimal places: 2 . So 2.199 rounds to 2.
3 0
3 years ago
Which is greater than or less than
poizon [28]

Answer:

 C. -2/3 < -0.8

 F. -3/5 < -0.35

Therefor, -2/3 is less than -0.8.

And, -3/5 is also less than -0.35.

Also, you could turn the fractions into decimals to make your life easier for example, -3/5 into decimal form is -0.6.

And -2/3 into decimal form is -0.6666

* Hopefully this helps:) Mark me the brainliest:)!!

3 0
3 years ago
at Herman's Bakery 40% of the total cookies made last week where oatmeal cookies. if 20 cookies were oatmeal how many total cook
Doss [256]

Answer:

50 cookies were made last week

6 0
3 years ago
HELP NOW (+ brainlist)
schepotkina [342]

Answer:

2/6

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the difference of 97 and 79?? Do You has ever to multiply them??
    10·1 answer
  • One hundred people were surveyed about their preference. They had to choose between french toast and pancakes and between sausag
    12·2 answers
  • Tania is considering renting a car for the weekend. The weekend daily rate is $29.99. If she plans on picking up the car on Frid
    9·2 answers
  • Which is bigger 3.2 or 3.23
    8·2 answers
  • As θ increases from -pi/2 to 0 radians, the value of cos θ will.
    6·1 answer
  • what percent was the first increase in population for the gold rush in California? a 100% b 200% c 500% d 1000%
    15·1 answer
  • Please help! thank you ​
    13·1 answer
  • Help I have this question and I don’t know what the value of a would be
    6·1 answer
  • What’s the answer for number 1 ????
    11·1 answer
  • Mean of four consecutive even numbers is 15. Enter each number separated by a comma<br>​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!