A frequency polygon for the times taken by 18 people to complete a puzzle is shown in the image attached below.
<h3>How to draw a frequency polygon?</h3>
In order to draw a frequency polygon for the given data, we would construct a frequency table as follows:
<u>Time, t minutes Frequency</u>
0 < t ≤ 10 5
10 < t ≤ 20 5
20 < t ≤ 30 7
30 < t ≤ 40 1
Next, we would determine the midpoint of the data set:
- 10 < t < 20 = (10 + 20)/2 = 15.
- 20 < t < 30 = (20 + 30)/2 = 25.
- 30 < t < 40 = (30 + 40)/2 = 35.
Read more on frequency polygon here: brainly.com/question/22273443
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9514 1404 393
Answer:
y = x +6
Step-by-step explanation:
The line rises 1 unit for each 1 unit it goes to the right. The slope is ...
m = rise/run = 1/1 = 1
The line intersects the y-axis at y=6, so the y-intercept is ...
b = 6
The slope-intercept form of the equation of a line is ...
y = mx +b . . . . for slope m and y-intercept b. We have m=1, b=6.
y = x +6 . . . . . the equation of the line on the graph
Because n is a variable and a variable is serving that you can always change.
Answer:
4ab
Step-by-step explanation:
4(-3b)(+a)+8ab÷2a×4a
4(-3ab)+8ab÷2a×4a
-12ab+8ab÷2a×4a
-12ab+4b×4a
-12ab+16ab
16ab-12ab = <u>4ab</u>