A survey from summer 2019 found that the average American adult spent 2.25 hours a day in front of a computer outside of work, with a standard deviation of 0.75 hours. The survey also found that the population data is most likely normally distributed. a) What portion of adults are in front of a computer for less than 0 hours a day, outside of work? b) Medical professions recommend spending no more than 2 hours in front of a computer each day. What portion of the population is on their computer more than the recommended amount? c)What portion of adults spend between 1 and 5 hours a day in front of a compute reach day, outside of work?

Answer:

a.EF is longest

b.40 degree

c.140 degree

d.148 degree

e.BC,AC,BA

Step-by-step explanation:

Answer:

you don't give enough information to help answer this question

Answer:

You can explore a variety of things in Alaska. There are so many activities you could do such as visiting museums and hiking and tons more. The thing about this is that it is out in the wilderness which makes it more exciting and cooler to see nature more than it does in new zealand. The climate can be pretty chilly in Alaska but it is way much fun to see tons of glaciers. New zealand has eathquakes frequently whilst Alaska doesn't.

Answer:

68%

Step-by-step explanation:

By the empirical rule, for an approximately normal distribution, about 68% of all values are within one standard deviation from the mean. Refer to the normal distribution bell curve.

The percentage of all values are within 1 standard deviation from the mean is given by A = 68 %

An example of a continuous probability distribution is the normal distribution, in which the majority of data points cluster in the middle of the range while the remaining ones taper off symmetrically toward either extreme. The distribution's mean is another name for the centre of the range.

Normal distributions are symmetric, uni-modal, and asymptotic, and the mean, median, and mode are all equal

A data set (when graphed) must follow a bell-shaped symmetrical curve centered around the mean

Given data ,

In an approximately normal distribution, about 68% of all values are within 1 standard deviation from the mean

This is known as the empirical rule or the 68-95-99.7 rule, which states that

About 68% of the data falls within one standard deviation of the mean

About 95% of the data falls within two standard deviations of the mean

About 99.7% of the data falls within three standard deviations of the mean

Hence , the data falls within one standard deviation of the mean is 68 %

To learn more about normal distribution click :

https://brainly.com/question/17199694

#SPJ2

Answer:

fdvbggggggggggggggggg

Step-by-step explanation:

Answer:

Answer?

Step-by-step explanation:

abcdefg your cool B)

A dependent clause is not a complete thought

Because,

Dependent clase sentences cannot stand alone as sentences due to lack of meaning. Examples are as follows: When my mother was sleeping.

Answer:

tysm. Have a wonderful day...

Answer:

2000pi

Step-by-step explanation:

V of a cylinder = Area of the base × height

Area of a circle = pi × r^2

A = pi × (10)^2 = 100pi

V = 100pi × 20 = 2000pi

Answer:

OK

Step-by-step explanation:

Answer:

40.3291139241

Step-by-step explanation:

no, thank you

Answer: You get 40.36 first. If it is by nearest tenth, then 40.4. Nearest ten, then 40

Answer:

9 men choose 5 / 16 people choose 5 = 9c5 /16c5 = 3/104

Answer:

negative square root will result in zero x-intercepts

Step-by-step explanation:

there are no x-intercepts because if you use the quadratic formula on the equation you get a negative square root which results in zero x-intercepts

in this case, a=-1, b=4, c=-12

[-4±√4² - 4(-1)(-12)] / 2(-1)

= [-4 ± √16-48] / -2

= -4 ± √-32 / -2

Answer:

x + y + z = 272 - - - - - - (1)

x = 3y - - - - - - - - - - - - - (2)

z = 32 + y - - - - - - - - - - (3)

Step-by-step explanation:

Let :

Number of pop songs = x

Number of rock songs = y

Number of hophops = z

Sum of the three types of songs = 272

x + y + z = 272 - - - - - - (1)

Pop is 3 times Rock :

x = 3y - - - - - - - - - - - - - (2)

Hiphop is 31 more than rock

z = 32 + y - - - - - - - - - - (3)

Answer:5x3= 15

The tickets were $15 in total

28-15= 13

13:3= 4’3

Each bag of candy was $4’3

Step-by-step explanation:

Answer:

Use a calculator and use the formula 1/2 × pi × (radius squared)

Answer:

hypotenuse

Step-by-step explanation:

Answer:

HYPOTENUSE

Step-by-step explanation:

No need to explain

°^°

Answer:

First Diagram

Natural numbers are only a part of whole numbers

Given:

The table of data values.

To find:

What is the percentage of 10th grade students are in 2 clubs.

Solution:

From the given table it is clear that the number of 10th grade students are in 2 clubs is 12.

Total number of students in 10th grade is:

[tex]125+12+15=152[/tex]

Now, the percentage of 10th grade students are in 2 clubs is:

[tex]\text{Required percentage}=\dfrac{\text{Number of 10th grade students are in 2 clubs}}{\text{Total number of students in 10th grade}}\times 100[/tex]

[tex]\text{Required percentage}=\dfrac{12}{152}\times 100[/tex]

[tex]\text{Required percentage}=\dfrac{1200}{152}[/tex]

[tex]\text{Required percentage}\approx 7.89\%[/tex]

Therefore, the percentage of 10th grade students are in 2 clubs is 7.89%.

Answer:

Length of straw = 11 inch (Approx.)

Step-by-step explanation:

Given:

Length of cuboid = 9 inch

Width of cuboid = 5 inch

Height of cuboid = 4 inch

Find;

Length of straw

Computation:

Length of straw = Diagonal of cuboid

Diagonal of cuboid = √l² + b² + h²

Diagonal of cuboid = √9² + 5² + 4²

Diagonal of cuboid = √81 + 25 + 16

Diagonal of cuboid = √122

Diagonal of cuboid = 11.04

Length of straw = 11 inch (Approx.)

Answer:

D

Step-by-step explanation:

Answer:

11/12

Step-by-step explanation:

Answer: See explanation

Step-by-step explanation:

Your question isn't complete but I believe that you want to know the number of rides that Katie can take.

Based on the information in the question, we can form an equation. Let the number of rides that Katie can take be represented by x. Therefore,

12 + (1.25 × x) = 50

12 + 1.25x = 50

1.25x = 50 - 12

1.25x = 38

x = 38/1.25

x = 30.4

Therefore, Katie can take at most 30 rides.

Answer:

(a) The total area of compound figure is [tex]284.52ft^2[/tex].

(b) The total perimeter of compound figure is 68.84 ft.

Step-by-step explanation:

Perimeter: The total distance covered by the figure.

Area: It is defined as the space occupied by the figure.

Given:

Length of rectangular figure = 19 ft

Breadth of rectangular figure = 12 ft

Radius of circle, r = [tex]\frac{12ft}{2} = 6 ft[/tex]

Part (a):

Now calculating the total area of the compound figure.

[tex]\text{Total area}=\text{Area of rectangular figure}+\frac{1}{2}\times \text{Area of circle}\\\\\text{Total area}=\text{Length}\times \text{Breadth}+\frac{1}{2}\times \pi r^2[/tex]

Now putting all the given values in this formula, we get:

[tex]\text{Total area}=(19ft\times 12ft)+\frac{1}{2}\times 3.14\times (6ft)^2\\\\\text{Total area}=284.52ft^2[/tex]

Part (b):

Now calculating the total perimeter of the compound figure.

[tex]\text{Total perimeter}=2\times \text{Length}+Breadth+(\frac{1}{2}\times \text{Circumference})\\\\\text{Total perimeter}=2\times \text{Length}+Breadth+(\frac{1}{2}\times 2\times \pi \times r)[/tex]

Now putting all the given values in this formula, we get:

[tex]\text{Total perimeter}=2\times \text{Length}+Breadth+(\frac{1}{2}\times 2\times \pi \times r)\\\\\text{Total perimeter}=2\times 19ft+12ft+(\frac{1}{2}\times 2\times 3.14 \times 6ft)\\\\\text{Total perimeter}=68.84ft[/tex]

Answer:

Where are the answers

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

f(x)=-2x+7

f(5)=-2×5+7

=-10+7

=-3

Answer:

Solution given:

[tex] \frac{5 + x}{2} = 4 [/tex]

multiplying both side by 2

[tex] 5 + x = 4 \times 2 [/tex]

subtracting both side by 5

we get

x = 8 -5

x = 3

x = 3is a required answer.

Answer:

1/216

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

trust