The amount of television viewed by today's youth is of primary concern to Parents Against Watching Television (PAWT). 300 parents of elementary school-aged children were asked to estimate the number of hours per week that their child watched television. The mean and the standard deviation for their responses were 16 and 4, respectively. PAWT constructed a stem-and-leaf display for the data that showed that the distribution of times was a bell-shaped distribution. Give an interval around the mean where you believe most (approximately 95%) of the television viewing times fell in the distribution.
A) between 12 and 20 hours per week
B) between 8 and 24 hours per weelk
C) between4 and 28 hours per week
D) less than 12 and more than 20 hours per week

Answers

Answer 1

Answer:

B) between 8 and 24 hours per week

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean of 16, standard deviation of 4.

Give an interval around the mean where you believe most (approximately 95%) of the television viewing times fell in the distribution.

Within 2 standard deviations of the mean, so:

16 - 4*2 = 16 - 8 = 8 hours per week.

16 + 4*2 = 16 + 8 = 24 hours per week.

This means that the correcgt answer is given by option B.


Related Questions

Select the correct answer.
What is the value of this expression if h = 8, j = -1, and k
= -12?
А. 3
B
12
C.
36
D
-12
PLEASE HELP ME

Answers

Answer:

the answer is B so it's 12

NO LINKS. Each event can occur in the given number of ways. Find the number of ways all of the events can occur.​

Answers

9514 1404 393

Answer:

1254890

Step-by-step explanation:

Assuming the events are independent, the numbers of ways are multiplied in order to find the total number of possible ways a combination of events can happen.

1. 3×4 = 12

2. 1×5 = 5

3. 4×6×2 = 48

4. 2×9×5 = 90

In 2016, there were approximately 4.46 x 10 people in Asia. On average, a person takes
8.4 x 10 breaths per year. Using this data, what was the number of breaths of all the people
in Asia in 2016? Expressing your answer in scientific notation in the form a < 10', what are
the values of a and b?

Answers

Answer:

The answer for A is A- 3.75

And the answer for B is B- 16

At a local bodega, the cost of a banana at the corner store is $1.50, and the cost of a
bottle of soda is $1.20. What would it cost to get 5 bananas and 2 bottles of soda?
What would it cost to get x bananas and y bottles of soda?

Answers

Answer:

$7.5

Step-by-step explanation:

4 bottles cost = $5

Then 1 bottle costs:

$5/4 = $1.25

Then 6 bottles cost:

$1.25*6 = $7.5

Is the product 3/5 times 8 greater than or less than 8? Explain.

Answers

Answer:

Less than

Step-by-step explanation:

1x8 - exactly 8

So multiplying something less than 1 x 8 must be less than 8.

3/5<1

Hope this helps!

Is 6.584 a rational number

Answers

What's your numerator and denominator value?

i need help on this PLS

Answers

Answer:

go on MATH.WAY. it'll give you the answer and explanation

Step-by-step explanation:

Mario made this model to find the 3 digit number and a 1 digit number what multiplication sentence represents marios model

Answers

Answer:

Step-by-step explanation:

Ewww

-3x + 2 ≤ 14= ? [tex]-3x +2 \leq 14[/tex]

Answers

Answer: x>=-4

Step-by-step explanation:

-3x+2<=14

subtract 2 from both sides,

-3x<=12

Divide by -3, because you are dividing by a negative, the sign gets flipped

X>=-4

m∠1=(3x+21)° and m∠3=(4x+9)° what is the value of x

Answers

Value of [tex]x[/tex] as per considering given pair as vertical  opposite angles is equals to [tex]12[/tex] degrees.

What are vertical opposite angles?

" Vertical opposite angles are defined as when two straight line intersect each other , the two non adjacent angles are vertical opposite angles. Measure of vertical opposite angles are always equal."

According to the question,

Given measure of angles,

[tex]m \angle1 = (3x + 21)\°[/tex]

[tex]m \angle3= (4x + 9)\°[/tex]

Consider both the angles as vertically opposite angles we get,

[tex]m \angle1 =m \angle3 \\\implies(3x + 21)\° = (4x + 9)\°\\\\\implies 4x -3x = (21 - 9))\°\\\\\implies x = 12\°[/tex]

Hence, value of [tex]x[/tex] as per considering given pair as vertical  opposite angles is equals to [tex]12[/tex] degrees.

Learn more about vertical opposite angles here

https://brainly.com/question/18045519

#SPJ2

Ms. Medina gives 9 students each 3 Jolly Ranchers. Then she divides
the rest of the Jolly Ranchers in her bag up between those 9 students.
if she started with 72 Jolly ranchers, how many extra Jolly Ranchers
did she give them?

Answers

Answer:

45

Step-by-step explanation:

9 × 3 = 27

started with 72

72 - 27 = 45

Evaluate f(3m-4) given

Answers

F x(3m-4)
3fm-4f
Answer= 3fm-4f

Which statement is the best reason that the author includes conversations with the dog in the book Travels with Charley? A. It shows that a dog really is a man’s best friend. B. This dog is unusually responsive to people. C. It presents an alternative way for the author to show his thoughts. D. The author cannot find any people to talk to.

Answers

Answer its b because im right

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

The area of a rectangle is 108 square meters the width is 9 meters what is the length

Answers

Answer:

12

Step-by-step explanation:

9x12=108

Answer:

length is 12

Step-by-step explanation:

108 divided by 9 is 12

What kind of property is used in the following example?

3 x 7 = 7 x 3


Identity Property


Associative Property


Distributive property


Commutative Property

Answers

Commutative Property

What is equivalent to 3^-5

Answers

Answer:

The answer is the choose: (D)

[tex] {3}^{ - 5} = \frac{1}{ {3}^{5} } [/tex]

What is 7845 times 3000^[2] divided by 90+3^85×(2)

Answers

Answer: 7.1835091

Step-by-step explanation:

Find the circumference of a circle with diameter 2 cm. Use 3.14 for​

Answers

Answer:

6.28 cm

Step-by-step explanation:

Given,

Diameter = 2 cm

pi = 3.14

To find : Circumference ( circle ) = ?

Radius ( r )

= Diameter / 2

= 2 / 2

= 1 cm

Formula : -

Circumference ( circle ) = 2 pi r

2 pi 4

= 2 × 3.14 × 1

= 6.28 cm

Answer:

6.28

Step-by-step explanation:

radius= diameter/2

r=2/2=1

circumference formula=2[tex]\pi[/tex]r

[tex]\pi[/tex]=22/7 or 3.14

So,

2[tex]\pi[/tex]r= 2*3.14*1= 6.28

Evaluate the expression 18 - 5 + 4 / 5 x 1

Answers

Answer:

18 - 5 + 4 / 5 x 1

18-5+4/5

13+4/5

(75+4)/5

79/5

hope it is helpful to you

Which of the following has a slope of -2 and a y-intercept of 4?

• y= -2x + 4
• y= -2x - 4
• y= 2x + 4
• y= 2x - 4

Answers

The answer is A!!!! Y=-2x+4

pls help and stay tuned bcs their will be more questions bcs i just not that smart
._.

Answers

Answer:

I beileve it is Y.

Step-by-step explanation:

a coffee shop sells coffee beans by the pound. A container hold 16 kilograms of coffee beans. For every 1 kilogram, there are approximately 2.2 pounds

Answers

Answer:

23.6

Step-by-step explanation:

Answer: 23.6

Step-by-step explanation:

what is 6 divided by 10 to the second power

Answers

Answer:

j

Step-by-step explanation:

h

Consider the equation 5 +x=n.
What must be true about any value of x if n is a negative number?
Explain your answer.
Provide an example that would satisfy this condition.
Explain how you know your equation is correct.

Answers

Answer:

It's C.

Step-by-step explanation:

Any value of x must have a bigger negative number than 5. In this case, formally you say that all x values must be LESS than 5 only.

HEPL MEE, I NEED EXTREME HELP!

Find the area and the perimeter of this shape!!!!
SEE ATTACHED FILE.

Answers

Answer:

A= ( 5 x 3 ) x [(9-5)x3 divided by 2]

15+6

=21

P= 5+5+3+9

=22

YO SOMEONE HELP MEEE

Answers

Answer:

x= -14

Step-by-step explanation:

answer: x= -14

explanation:

Find the length of NL.

Answers

Answer:

8

Step-by-step explanation:

By intersecting chords theorem:

[tex]4x = 2 \times 8 \\ \\ 4x = 16 \\ \\ x = \frac{16}{4} \\ \\ x = 4 \\ [/tex]

NL = 4 + x = 4 + 4 = 8

The ratio of hot dogs to hamburgers on a barbeque table is 7:3. If there are 51 hamburgers on the table then how many hot dogs must be there?

Answers

Answer:

119 hotdogs

Step-by-step explanation:

Let 7x = no. of hotdogs

then 3x = no. of hamburgers

3x = 51

x = 17

7(17) = 119 hotdogs

Solve for x.
X + 9
2x 111
x = [?]

Answers

Answer:

120

Step-by-step explanation:

Angle x + 9 and 2x - 111 are adjacent angles.

Adjacent angles are equal.

2x - 111 = x + 9

2x - x = 9 + 111

x = 120

Answer:

2x-111=x+9[corresponding angle]

2x-x=111+9

x=120

HELP ME PLEASEEEEEEEEEEEE

Answers

Answer:

c

Step-by-step explanation:

6x9=54

54/2= 27

Answer:

27 square units

Step-by-step explanation:

Area of a triangle = (1/2)(base)(height)

A = 1/2(6)(9)

A = 1/2(54)

A = 27

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