Answer:
Median: 15
Mean: 14.875 or 14.9 if rounded
Step-by-step explanation:
To find the median, arrange the numbers in order from least to greatest and find the middle value between the numbers.
To find the mean, add all the numbers and divide by however many numbers there are.
-7<span>° F
There is really no work to be shown unless you do:
0-7=-7
-7</span><span>° F</span>
The missing number is 16
<em><u>Solution:</u></em>
Given that mean of data is 18
Let "x" be the missing number
The data set is:
21, 11, x , 27, 22, 13, 16
Sum of data set = 21 + 11 + x + 27 + 22 + 13 + 16
Sum of data set = 110 + x
<em><u>The mean is given by formula:</u></em>

Substituting the values we get,

Thus the missing number is 16
Answer:
Pretty sure it's 27
Step-by-step explanation:
(2 4= 8) + 3 (4 4= 16)=27
Here is my work:
(x+4)(x+4) Use distributive property
x^2+4x+4x+16 Combine like terms
x^2+8x+16