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3 years ago

PLEASE HELP! I’m so confused. Explain your answer, thanks!

Mathematics

2 answers:

kakasveta [241]3 years ago

5 0

Answer:

y+2 = 3/4 (x-1)

Step-by-step explanation:

We have a slope and a point, we can use the point slope form of the equation for a line

y-y1 = m(x-x1)

where m is the slope and (x1,y1) is the point

y--2 = 3/4(x-1)

y+2 = 3/4 (x-1)

kolezko [41]3 years ago

3 0

Answer:

The equation for a line is written as Y - Y1 = slope(x-X1)

You are given (1,-2) as a point, so x1 = 1 and y1 = -2 and the slope is given as 3/4

replace those values in the equation:

y - (-2) = 3/4(x-1)

When you have a minus and a negative number as above it becomes an addition.

The equation becomes:

y+2 = 3/4(x-1)

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2 years ago

Rachel recorded the number of calls she made at work during the week:

Dmitry [639]

The chi-squared test statistic will be 3.11. The test statistic is contrasted with a predicted value based on the Chi-square distribution.

<h3>What is the chi-squared test statistic?</h3>

Finding the squared difference between the actual and anticipated data values, then dividing that difference by the expected data values, constitutes the test statistic.

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$\sum \frac{(O_i-E_i)^2}{E_i } \\\\$

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The chi-square test statics is;

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Hence, the chi-squared test statistic will be 3.11.

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Hope This Helps

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3 years ago

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