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Dmitry [639]
2 years ago
8

I have 28 students in my MAT121 class who recently took a test. Their results are graphed below.

Mathematics
1 answer:
bekas [8.4K]2 years ago
5 0

Considering the box-and-whisker plot, it is found that:

a) 25% of the students scored less than 60.

b) 25% of the students received a score greater than 85.

<h3>What does a box-and-whisker plot shows?</h3>

A box and whisker plot shows three things:

  • The 25th percentile, which is the median of the bottom 50%.
  • The median.
  • The 75th percentile, which is the median of the upper 50%.

From the plot given in the graph, we have that:

  • The 25th percentile is of 60, hence 25% of the students scored less than 60.
  • The 75th percentile is of 85, hence 25% of the students received a score greater than 85.

More can be learned about a box-and-whisker plot at brainly.com/question/27608957

#SPJ1

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Hi there!

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I hope this helps!

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torisob [31]
N the slope-intercept form you use the slope of the line and the y-intercept to express the linear function.
y=mx+b
y=mx+b
Where m is the slope and b is the y-intercept.
Example
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rewrite in slope-intercept form
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y=2x+1
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m = 2 and b = 1
Plot the point corresponding to the y-intercept, (0,1)
picture23
The m-value, the slope, tells us that for each step to the right on the x-axis we move 2 steps upwards on the y-axis (since m = 2)
picture24
And once you have your second point you can just draw a line through the two points and extend it in both directions.
picture25
You can check to see that the line you've drawn is the correct one by substituting the coordinates of the second point into the original equation. If the equation holds true than the second point is correct.
Our second point = (1, 3)
y−2x=1
y−2x=1
3−2⋅1=3−2=1
3−2⋅1=3−2=1
Our second point is a solution to the equation i.e. the line we drew is correct.
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A group of functions that have similar characteristics are called a family of functions. All functions that can be written on the form f(x) = mx + b belong to the family of linear functions.
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4 0
3 years ago
Simplify the first expression 5(m+1)-1=
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Answer:

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Step-by-step explanation:

5(m+1) -1 = 0

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5m= -4

m= -4/5

8 0
3 years ago
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