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katen-ka-za [31]
3 years ago
8

Quiz: Writing an Equation given Attributes (focus, directrix, vertex, or p-value)

Mathematics
1 answer:
mash [69]3 years ago
5 0
E plus c equal G then smoke that zara
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find the value of x2 values that separate the middle 90% from the rest of the distribution for 8 degrees of freedom
Anettt [7]

Answer:

With alpha 0.95 and 8 degrees of freedom χ²= 2.73

And with alpha 0.05 and 8 degrees of freedom χ²=15.51

Step-by-step explanation:

The significance level ∝ = 1- 0.9 = 0.1

But we need the area of the middle so we divide this significance level with 2

so that we get exactly the middle area .

Dividing 0.1/2= 0.05

So we will have two values for chi square

One with  0.9 + 0.05 = 0.95 alpha and one with 0.05 alpha . This is because the chi square is right tailed.

So with alpha 0.95 and 8 degrees of freedom χ²= 2.73

And with alpha 0.05 and 8 degrees of freedom χ²=15.51

This can be shown with a graph.

4 0
3 years ago
The price of an item has risen to $221 today. Yesterday it was $130. Find the percentage increase.
wlad13 [49]

Answer:

70

Step-by-step explanation:

4 0
3 years ago
How many halves are in 6 wholes
GenaCL600 [577]

Answer:

12

Step-by-step explanation:

So, all you have to do is multiply 6 and 2.

In \frac{1}{2} If you add \frac{1}{2}+\frac{1}{2} it equals 1 whole.

If 2 \frac{1}{2} equals 1 whole. You multiply 6 by 2.

Hope this helped!

6 0
3 years ago
Read 2 more answers
Which of the following polygons is a quadrilateral
saw5 [17]

Answer:

C

Step-by-step explanation:

A quadrilateral is a shape with 4 sides.

A is a triangle, 3 sides

B is a pentagon, 5 sides

D is a hexagon, 6 sides

C is a quadrilateral, 4 sides

4 0
1 year ago
Read 2 more answers
1. Solve the given quadratic equations by extracting square roots. Provide an extra sheet for your solutions.​
kirill [66]

An

Step-by-step explanation:

6 0
3 years ago
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