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
Radda [10]
3 years ago
7

The caffeine content of a cup of home-brewed coffee is a normally distributed random variable with a mean of 115 mg and a standa

rd deviation of 20 mg. What is the 50th percentile value of caffeine content in a cup of home-brewed coffee
Mathematics
1 answer:
sdas [7]3 years ago
3 0

Answer:

115 mg

Step-by-step explanation:

The 50th percentile has a corresponding z-score of z = 0. The z-score, for any given value of caffeine, X, is given by:

z = \frac{X-mean}{SD}

Therefore, if z=0, then X must be equal to the mean value of the normal distribution, which is 115 mg. Thus, the 50th percentile value of caffeine content is 115 mg.

You might be interested in
can someone help me answer a trigonometry question? I'm new to this website so I don't know how to write my question out
yarga [219]

maybe you can attach the photo ?

5 0
3 years ago
Ayo, here are some points.<br> Also- what's an unpopular opinion you have? About anything.
Sati [7]

Answer:

hli

Step-by-step explanation:

how r u dear hope u r fine

3 0
2 years ago
Read 2 more answers
Find the value of the expression.<br> c²b<br> for b = 5 and c = 3
kicyunya [14]

Answer:

45

Step-by-step explanation:

c^2*b

We know that c is 3, and b is 5, so we can substitute them in

3^2*5

Solve the exponent first

9*5

Multiply

45

7 0
2 years ago
Read 2 more answers
The absolute value of some number is 17.4. Write an equation to represent this statement. Then solve the equation to find all po
Alja [10]

i do not know what to say

6 0
3 years ago
Read 2 more answers
The probability line shows the probability of 5 chance events (A, B, C, D, and E) occurring. Which THREE statements BEST describ
KatRina [158]

Answer:

E

B

C

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • Which number when rounded to the nearest tenth is the largest number? A) 5.47 B) .723 C) 23.409 D) 5.89
    7·1 answer
  • McDonald's has about 210,000 managers and each makes on average 39,000 dollars per year. How much money does McDonald's spend on
    9·1 answer
  • What is the formula of polygons of triangle?​
    14·1 answer
  • Answer for the square root(5x-9)+1=x
    15·1 answer
  • Kevin’s school is 5.2 miles away from his house. How far is this in yards? Do not round your answer. _________ yards
    9·1 answer
  • I need help<br> please I really need help
    11·2 answers
  • you are making sandwiches for a mountain hike.each sandwich uses 3 slices of bread,and you want to prepare 2 sandwiches for each
    6·1 answer
  • Find the x and y coordinates. 5x + 4y = 1 and y = 1 - x​
    11·1 answer
  • Which number is bigger, <br><br> square root of 24 <br> or <br> 4.256
    7·2 answers
  • Select all statements that are true about the triangles.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!