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
weqwewe [10]
3 years ago
9

The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of 0.5 min

utes. What is the probability that a conversation lasts longer than 3 minutes? 
Mathematics
2 answers:
fredd [130]3 years ago
7 0
On virtual school, the answer is 0.02275
Lapatulllka [165]3 years ago
5 0
Okay.consider  A as  the length of a text message conversation.
p(a>3)=1-p(b<3-2)/0.5)=1-0.97725= 0.02275.
 hope i help.
good luck!
You might be interested in
Can someone help me wit #4 plzz
iris [78.8K]

Answer: It represents the area of the two circular sides ("lids")

Explanation:

Imagine you made a cylinder out of 3 pieces of paper. The cylinder can be decomposed into two circular shapes (radius r) and one rectangular piece with two side lengths: one is "h", the other has to be long enough to go around each of the disks, so it has to be 2*pi*r long.

So the term 2*pi*r*h is the area of the rectangular piece and pi*r^2 is the area of each of the "lids" Since there are two of those, the term 2*pi*r^2 represents the area of the bottom and top lids.

7 0
3 years ago
Which sequence below represents an exponential sequence A.) {2,6,10,14,18,...} B.) {3,5,9,16,24,...} C.) {4,8,24,96,...} D.) {25
denis-greek [22]

Answer:

  D.)  {256,64,16,4,...}

Step-by-step explanation:

Look for the sequence in which adjacent terms are related by a common ratio.

  A. 10/6 ≠ 6/2

  B. 9/5 ≠ 5/3

  C. 8/4 ≠ 24/8

  D. 64/256 = 16/64 = 4/16 = 1/4 . . . . this exponential sequence has a common ratio of 1/4

6 0
3 years ago
BRAINLIST!!! The area of Alex's room is 168 square feet. If his room is a rectangle and one side is 12 feet, how long is the oth
Cloud [144]

Answer:

the missing length is 14 feet.

Step-by-step explanation:

a = L × W

168ft² = 12 × W     - divide both sides of the equation by 12

                             - 168 ÷ 12 = 14

168ft² = 12 × 14

6 0
3 years ago
Can someone help me with this
Solnce55 [7]
Aye man , who wants to give me points
4 0
2 years ago
Why would you use the measurement 8 feet 4 inches instead of 7 feet 16 inches?.
lidiya [134]

8 feet 4 inches is more precise and easier to use.

It would be weird to say 7 feet 16 inches, because there's 12 inches in a foot and your already using that measurement.


Hope this is helpful:)


3 0
4 years ago
Other questions:
  • Maddie and her friends are making s'mores over the campfire. they have a bag of 48 marshmallows, 2 packs of graham crackers cont
    8·1 answer
  • ms.louis buys popcorn in 20kg bags . her daughter eats 9bags of popcorn per month . how many kg of popcorn does her daughter eat
    10·1 answer
  • A drawer contains 2 red socks, 8 white socks, and 10 blue socks. Without looking, you draw out a sock and then draw a second sic
    12·1 answer
  • (4x2 + 2x + 1) + (3x + 4x + 1
    5·1 answer
  • Factor this Quadratic Expression. <br><br> x² – 2xy + y2
    14·1 answer
  • What is the slope of the line through [-1,2] and [2,-3]
    11·1 answer
  • What is 3r³/2r<br>how do I go about solving it <br>thanks​
    15·2 answers
  • Calculate the rate of change for the following data
    6·1 answer
  • Plsplspslspss helppppieee
    6·1 answer
  • Find the measure of angle x in the figure below:<br><br> •15°<br> •25°<br> •30°<br> •60°
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!