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Ilya [14]
3 years ago
6

How to do expected frequency for chi^2 goodness fit test ​

Mathematics
2 answers:
Sophie [7]3 years ago
4 0
How do you find the expected frequency in a chi square goodness of fit?
Pearson's chi-square goodness of fit test statistic is: - where Oj are observed counts, Ej are corresponding expected count and c is the number of classes for which counts/frequencies are being analysed.
...
Chi-square Goodness of Fit Test.
Value Observed frequency Expected frequency
3 29 14.96
4 8 5.61
vitfil [10]3 years ago
4 0

Step-by-step explanation:

So basically you're going to start with your (expected value - observed value) squared

(O-E)²

You're then gonna divide that by your expected value that you just used

(O-E)²/E

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Given that m angle G- 81", what is m angle I?<br> A)81"<br> B)89<br> C)91<br> D)99
seraphim [82]

Answer:

\text{D) }99^{\circ}

Step-by-step explanation:

Define a cyclic quadrilateral by a quadrilateral that is circumscribed by a circle. In this case, since the quadrilateral shown is circumscribed by a circle, it is a cyclic quadrilateral.

A property of all cyclic quadrilaterals is that their opposite angles are supplementary, meaning they add up to 180 degrees. Since \angle G and \angle I are opposite angles in the quadrilateral, they must be supplementary. Therefore, we have the equation:

\angle G+\angle I=180,\\81^{\circ}+\angle I=180,\\\angle I=180-81=\boxed{99^{\circ}}

3 0
3 years ago
Read 2 more answers
A hot liquid is placed in a refrigerator to quickly cool down. The temperature of the liquid can be modeled with the exponential
True [87]

Answer:

This is 3

Step-by-step explanation:

4 0
3 years ago
The scale of a map is 1:1,000,000. What are the real distances between two points if the distance between them on this map is: b
Dennis_Churaev [7]

Answer:

The real distance is 600,000\ cm  or 6\ km

Step-by-step explanation:

we know that

The scale of the map is 1:1,000,000

that means

1 cm in the map-------> represent 1,000,000 cm in the actual (real distance)

so

by proportion

\frac{1}{1,000,000}=\frac{0.6}{x}\\ \\x=0.6*1,000,000\\ \\x=600,000\ cm

Remember that

1\ km=100,000\ cm

so

600,000\ cm=6\ km

3 0
3 years ago
In triangle ABC, angle A is a right angle and m angle B =45 degrees
Aliun [14]
C does in fact equal 45°
6 0
3 years ago
Alan takes 12 minutes to jog 1 kilometer. How many seconds does Alan take to jog 1 kilometer?
Brilliant_brown [7]
720 because  60 multiplied by 12 = 720 hope i helped
8 0
3 years ago
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