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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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Y/2 - 1/5 = 2 - y/3 <br><br>please tell me this asap ​
IRISSAK [1]

Answer:

y=2 16/25

in other words, two and sixteen twenty-fifths

Step-by-step explanation:

y/2-1/5=2-y/3

Move the variables to one side and constants to the other

y/2+y/3=2+1/5

Multiply y/2 by 3/3 and y/3 by 2/2 so that they have a common denominator

3y/6+2y/6=2 1/5

5y/6=11/5

Cross multiply

66=25y

y=66/25

y=2 16/25

HOPE THIS HELPS!!!

4 0
3 years ago
Factor –8x3 – 2x2 – 12x – 3 by grouping. what is the resulting expression? (2x2 – 3)(4x 1) (–2x2 – 3)(–4x 1) (2x2 – 3)(–4x 1) (–
myrzilka [38]

The factors of the expression are \rm (4x+1)(-2x^2-3)

<h3>How to find factors in the expression?</h3>

First group the first two terms and the last two terms together respectively.

The factors of the expression are given by;

\rm -8x^3 -2x^2 - 12x - 3\\\\-2x^2(4x+1)-3(4x+1)\\\\(4x+1)(-2x^2-3)

Hence, the factors of the expression are \rm (4x+1)(-2x^2-3).

To know more about factors click the link given below.

brainly.com/question/9645056

5 0
2 years ago
Read 2 more answers
Change: 0.9 miles ____ inches
Akimi4 [234]
Formula 1 mi =in * 63,360 So 0.9*63,360= 57024 inches
4 0
3 years ago
14 is no less than 8 times a number x plus 6.
dybincka [34]

Answer:

14 (insert less than or equal symbol)8x+6

Hope this helps! i hope the symbol is right!

6 0
3 years ago
Match
ladessa [460]
I think it’s D.............
7 0
3 years ago
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