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3 years ago

The dot plot shows the number of chess games won by each of the 20 students in a competition.

Mathematics

2 answers:

Soloha48 [4]3 years ago

6 0

Answer:

Letter B is the correct answer. Median is 4 and IQR is 5.

Step-by-step explanation:

son4ous [18]3 years ago

5 0

Jason : 8,8,11,13,14,14,15,18,21,22,22,27,27,28,30

median = 18

IQR = 27 - 13 = 14

Ed : 7,12,12,15,19,21,21,21,21,22,23,23,26,27,27

median = 21

IQR = 23 - 15 = 8

Their medians cannot be compared based on their IQR's are 6 points apart

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Read 2 more answers

Find the equation of the line that cuts through (0,5) and (1,2)?

MArishka [77]

The equation of the line that cuts through (0,5) and (1,2) is y = -3x + 5

<h3>Solution:</h3>

Given that we have to find equation of the line that cuts through (0,5) and (1,2)

The equation of line passing through points $(x_1, y_1)$ and $(x_2, y_2)$ is given as:

$y - y_1 = m(x - x_1)$

Where "m" is the slope of line

Let us first find slope of line

The slope of line is given as:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$\text{ Substituting } (x_1, y_1) = (0, 5) \text{ and } (x_2, y_2) = (1, 2)$

$m=\frac{2-5}{1-0}=-3$

Thus the required equation of line is:

$y - 5 = -3(x - 0)\\\\y - 5 = -3x\\\\y = -3x + 5$

Thus the equation of line is found

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