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
Is the number there three? if you answer to me i will give you twenty Points.
juin [17]

Answer:

2

Step-by-step explanation:

3 x 2 = 6

1 x 2 = 2

hope it helps

sorry if I'm wrong

7 0
1 year ago
NEED ANSWERS NOW!! (Reward) brainlest and pointsss
Misha Larkins [42]

Answer:

c

Step-by-step explanation:

(x+8)+(x+4)=0

×=-8 and ×= -4

4 0
2 years ago
Answer this problem<br>-3+(-2)​
Nikolay [14]

Answer:

-5

Explaination:

Because -3-2 is -5.

6 0
3 years ago
Read 2 more answers
PLEASE HELP I AM SO LOST AND NEED AN EXPLANATION.
Alex73 [517]

Answer:

A, f(2) is the answer because it fits into the requirements.



4 0
3 years ago
Read 2 more answers
A local hamburger shop sold a combined total of 483 hamburgers and cheeseburgers on Thursday. There were 67 fewer cheeseburgers
dusya [7]

Answer:

416, I believe this is the answer.

Step-by-step explanation:

483 - 67 = 416

5 0
2 years ago
Read 2 more answers
Other questions:
  • Samantha's age is 3 years more than half her uncle's age. If her uncle's age is z years, which of the following expressions best
    14·2 answers
  • How to use unit circle to evaluate the six trig functions of theta
    13·1 answer
  • Help please........................
    15·1 answer
  • A high school coach wants to buy new athletic shorts for the 15 members of the basketball team.The coach must spend less than $2
    5·1 answer
  • Joshua's goal is to sell more than 20 items at a farmers' market. So far, he has sold 6 items. Each of his customers buys 2 item
    5·1 answer
  • Ellen collected 88 empty cans to recycle,and Carl collected 72 cans. They packed an equal number of cans into each of two boxes
    13·1 answer
  • If Ashton drives 228 miles in 6 hours, what is his unit rate?
    9·2 answers
  • A restaurant is planning its staffing for weekday dinners. It finds that the number of customers is normally distributed. Which
    6·1 answer
  • What is the area of the figure determined by this
    6·1 answer
  • Can you please help me create an graph for C pleaseeee I need the answer quick thanks!!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!