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aniked [119]
3 years ago
11

A new website was reviewed by 91 people. The creator of the website surveyed 8 of the reviewers at random. He asked them to rate

the website on a scale from 1 to 10. Their ratings are below.
3, 7, 10, 6, 3, 10, 10, 6

Assuming that the sample was representative of all reviewers, what was the mean rating of the website for all reviewers?
A.
4.5
B.
6.5
C.
7.125
D.
6.875
Mathematics
1 answer:
Tanzania [10]3 years ago
4 0
The mean of the number set is the average of the numbers

To find the average of the number set the numbers are to be added together and divided by the total amount of numbers in the set

\frac{3 + 7 + 10 + 6 + 3 + 10 + 10 + 6}{8} = 6.875


You might be interested in
5. What is the equation of the tangent line to the circle x^2+y^2=1 through the point (6,0)?
notka56 [123]

Answer:

There is no tangent line of the given circle at (6, 0).

Step-by-step explanation:

Given equation of the circle,

x^2 + y^2 = 1

∵ equation of a circle is (x-h)^2 +(y-k)^2 = r^2,

Where, (h, k) is the center of the circle and r is the radius,

By comparing,

Center of the given circle = (0, 0),

Radius of the circle = 1 unit

Now, check whether point (6, 0) lie on the circle,

if x = 6, 6^2 + y^2 = 1

36 + y^2 = 1

y^2 = 1- 36

y= i\sqrt{35}\neq 0

i.e., (6, 0) does not lie on the circle,

Hence, there is no tangent line of the given circle at (6, 0).

3 0
3 years ago
Evaluate f(x) = 4x + 3x^2 − 5 when x = -2.<br> 23<br><br><br> -1<br><br><br> -25<br><br><br> -49
frozen [14]

Answer:

f(-2) = -1

Step-by-step explanation:

One way of doing this is to substitute -2 for x in every place where x shows up:

f(x) = 4x + 3x^2 − 5  →  f(-2) = 4(-2) + 3(-2)^2 − 5  

                                 → f(-2)  = -8    + 3(4) -   5, or f(-2) = 4 - 5, or f(-2) = -1

5 0
3 years ago
Divide. 5892 ÷ 18 in fraction form.
umka2103 [35]

Answer: 327 1/3

Hope this helps! :)

3 0
3 years ago
Read 2 more answers
What is the area of the shaded region?
kotegsom [21]

Answer:

Step-by-step explanation:

(7*11)-(22/7*2^2)

77-(22/7*4)

77-88/7

77-12.57

64.43

3 0
2 years ago
This is the last question which is the fifth one if you can PLS HELP
Trava [24]
I think the answer is b
3 0
2 years ago
Read 2 more answers
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