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
Svetllana [295]
3 years ago
11

The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of .5 minu

tes. What is the probability that a conversation lasts longer than 3 minutes?
0.043351
0.063748
0.02275
0.095424
Mathematics
1 answer:
Phoenix [80]3 years ago
6 0
Let x be a random variable representing the length of a text messaging conversation, then
P(x > 3) = 1 - P(x < 3) = 1 - P(z < (3 - 2)/0.5) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275
You might be interested in
What is ​ 0.63¯¯¯¯ ​ expressed as a fraction in simplest form?
mixas84 [53]
I dont know if those lines were suppose to be there, but i put 0.63 in simplest form = 63/100
5 0
3 years ago
Read 2 more answers
Which ordered pair is a solution to this equation? y = 5x - 2 (0, 2) (1, 4) (2, 7) (3, 13)
Maurinko [17]
Hello : 
(3, 13) <span>pair -  solution because when x=3     y = 5(3)-2 = 13</span>
4 0
3 years ago
I need help with 8 divided by 21
Mademuasel [1]
0.380952 then the numbers repeat
8 0
3 years ago
19. The value(s) of x such that<br> f(x) = 11<br> Help please):
In-s [12.5K]

Answer:

Hope you can find your answer on oceanhero

Step-by-step explanation:

3 0
3 years ago
You sent the same email message to 10 of your friends. The numbers of hours it took them to reply were 1, 1, 1, 2, 2, 3, 4, 5, 5
Katarina [22]
Median is 5
Mean is 4.9
Mode is 1
7 0
3 years ago
Read 2 more answers
Other questions:
  • 7/8,0.98,8/9 least to greatest
    10·1 answer
  • The graphs show the weekly change in the water level in a rainwater storage tank. Which of the following regression lines would
    10·2 answers
  • How can you tell if a discontinuity of a limit is removable or not removable?
    11·1 answer
  • Find the ratio of the area inside the square but outside the circle to the area of the square in the picture
    8·1 answer
  • Ms. Flair teaches art. She keeps her paintbrushes in a crate that is shaped like a cube. The crate measures 10 inches on each si
    10·2 answers
  • WHAT IS THE LENGTH OF THE SECOND BASE OF A TRAPEZOID IF THE LENGTH OF ONE BASE IS 27 AND THE LENGTH OF THE MIDSEGMENT IS 19 SHOW
    8·1 answer
  • What is the remainder of 203 divided by 9?
    5·1 answer
  • If you broke 100% into 5 equal sections, how much is each section worth?
    9·2 answers
  • Lisa's father is paying for a $20 meal. He has a 15% off coupon for the meal.
    9·1 answer
  • NEED HELP ASAP, WILL GIVE BRAINLIEST
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!