Which statement is true about the data set? [3,4,5,6,7,7,10)
2 answers:
Answer:
C. mean = median
Step-by-step explanation:
<em>To start off, you need to find the median and mean.</em>
<em>The median is usually the number that you find halfway. To find the median, make sure that the data is from least to greatest (which it already is).</em>
<em>3, 4, 5, 6, 7, 7, 10</em>
<em>Start by crossing one off from both sides until you get to the middle number.</em>
<em>4, 5, 6, 7, 7 </em><em>When you take out 3 and 10</em>
<em>5, 6, 7 </em><em> When you take out 4 and 7</em>
<em>6 </em><em>When you take out 5 and 7</em>
<u>6 would be your median</u>
<u />
<em>The mean is the average of the data. To get the mean, you must add up all the numbers and then divide by the amount of numbers there are (divide by the count).</em>
<em>3 + 4 + 5 + 6 + 7 + 7 + 10</em>
<em>7 + 11 + 14 + 10</em>
<em>18 + 24</em>
<em>42</em>
<em>Then divide by the count (the total amount of numbers)</em>
<em>*7 would be the count*</em>
<em>Now divide 42 by 7</em>
<u>The mean is 6</u>
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We want to find a linear equation that models the given situation.
The solution is p = $0.0001*q - $23
The general linear equation is:
p = m*q + c
Where m is the slope and c is the y-intercept.
If we know that the line passes through two points (x₁, y₁) and (x₂, y₂) then the slope can be written as:
Here we have the two points:
price = $9, boxes = 320,000
price = $8.50, boxes = 270,000
We can rewrite these as:
(320,000 , $9)
(270,000 , $8.50)
Then the slope of the line will be:
Then the line is something like:
p = $0.0001*q + c
To find the value of c we can use one of the two given points, I will use the first one, (320,000 , $9).
Replacing that in our equation we get:
$9 = $0.0001*320,000 + c
$9 - $0.0001*320,000 = c = -$23
Then the linear equation is:
p = $0.0001*q - $23
If you want to learn more you can read: