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
Goryan [66]
3 years ago
8

The amount of daily time that teenagers spend on a brand A cell phone is normally distributed with a given mean mc027-1.jpg = 2.

5 hr and standard deviation mc027-2.jpg = 0.6 hr. What percentage of the teenagers spend more than 3.1 hr?
Mathematics
2 answers:
Anarel [89]3 years ago
7 0
<span><span>If I read this properly, mean is 2.5 hr and sd is 0.6 hr.
z=(x-mean)/sd

=0.6/0.6, or 1
What is probability z>1?
It is 0.1587 or 16%. </span><span>
</span></span>
ivolga24 [154]3 years ago
4 0
<span>16% is the answer Fam.....................................</span>
You might be interested in
Which best describes the equation that the graph represents?
hoa [83]

Answer:

third option

Step-by-step explanation:

time ('x') is the independent variable so that leaves only options 1 and 3 as the answer

is the slope equal to 0.6 or 1.8?

I used the slope formula with the following points:  (1,2) and (5,9)

(9-2) / (5-1) = 7/4 = 1.75, or 1.8

3 0
3 years ago
HELP ASAP ILL GIVE BRAINLIEST AND EXTRA POINTS
In-s [12.5K]

it going to be number three

3 0
3 years ago
Read 2 more answers
I’m stuck <br><br> please help
Katena32 [7]

Answer:

13

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the volume of a rectangular prism with a length of 7m, a hight of 9m and a width of 11m
vazorg [7]
Hello!

To find the Volume of the Rectangular Prism, you'll need to multiply all of the measurements together. So you'll need to multiply 7, 9, and 11 together.

V=7*9*11

First, you'll need to multiply 7 and 9. Once you've multiplied 9 and 7 together, you should have 63. Now you should multiply 63 and 11 together. Once you've multiplied 63 and 11 together, you should have a Volume of 693

You should have a Volume of 693m³

I hope this helps!
5 0
4 years ago
A dog weighs 35.4 kilograms.1 kilogram=2.2 pounds,1 pound=0.45 kilograms.About how much does the dog weigh in pounds?Round to ne
AlladinOne [14]
Answer: 78 pounds
Explanation: if 1 kilogram is 2.2 pounds, just multiply the weight in kg by 2.2:
35.4 x 2.2 = 77.88
Round to nearest whole: 78.
So the dog is 78 pounds
4 0
2 years ago
Read 2 more answers
Other questions:
  • Need help with adding subtracting decimals.. . In this unit, you learned about fractions that can be written as terminating deci
    7·1 answer
  • I really need help on this problem can i get help on how to solve the problem please
    5·1 answer
  • A car can travel 60 miles on 3 gallons of gasoline. How far can it travel on 11 gallons of gasoline?
    6·2 answers
  • 53 is 50% of what number
    12·1 answer
  • Which value is the solution for this equation? 1 2 (4x + 16) = 20 A) −1 B) 2 C) 4 D) 6
    11·1 answer
  • To start the school year, a teacher spends $54.35 in school supplies for her classroom. During the course of the year, she will
    9·1 answer
  • To get a student learner's permit to drive in New Jersey, an individual must be at least 16 years old. Let, a, represent the age
    10·1 answer
  • Enter the number that makes the equation true 2 7/8+1 4/5=__ +1 32/40​
    14·1 answer
  • angle M and angle N are complementary. The measure of angle M is 38 degrees less than the measure of angle N Find the measure of
    12·2 answers
  • Please help urgently ​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!