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3 years ago

What is the value of the second quartile (Q2) of the data set?

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

7 0

45, 51, 52, 58, 61, 63, 66, 72, 74

You're trying to find the second quartile (Q₂), and to find that, you must find the median, and then find the median within the second half of the median :)

Median (Middle Number) : 61

Now, look at 61, and look at 74. What is the median of those numbers in this set?

Q₂ = 66

So, your quartile 2 is 66.

~Hope I helped!~

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The graph is uploaded in the attachment.

The value of x is 2.625.

Step-by-step explanation:

let us plot f(x), g(x) on y-axis

so, f(x)=y and g(x)=y.

the first equation can be written as y=5-2x

the general equation of a straight is y=mx+c

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now comparing given equation with the general equation mentioned above, the slope of first line is -2 and its y-intercept is 5

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now plot the graph using above information.

(y-intercept is the the coordinate of a point where the line intersects y-axis)

(slope is the angle made by the line with the x-axis)

by seeing the graph, the value of x is 2.625.

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