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What is the chi square test used for?
The chi-squared test is used to compare the observed results with the expected results. If expected and observed values are equal then chi-squared will be equal to zero. If chi-squared is equal to zero or very small, then the expected and observed values are close. Calculating the chi-squared value allows one to determine if there is a statistical significance between the observed and expected values. The formula for chi-squared is: X^2 = sum((observed - expected)^2 / expected) Using the degrees of freedom, use a table to determine the critical value. If X^2 > critical value, then there is a statistically significant difference between the observed and expected values. If X^2 < critical value, there there is no statistically significant difference between the observed and expected values.
What two numbers added equal 7 and multiplied equal -8?
-1
Does -3 squared equal -9?
No, it equals positive 9. Any negative number squared will always give a positive result; the square root of a negative number is always imaginary (a mathematical term, referring to 'i'). So, (-3)2 = 9 and -32 = -9.
What two numbers when added equal -4 and when multiplied equal -5?
-9
What is the probability of rolling the sum of 12 with 2 dice?
Since you need a specific number - the number 6 - twice, the probability is (1/6)2, which is equal to 1/36.Since you need a specific number - the number 6 - twice, the probability is (1/6)2, which is equal to 1/36.Since you need a specific number - the number 6 - twice, the probability is (1/6)2, which is equal to 1/36.Since you need a specific number - the number 6 - twice, the probability is (1/6)2, which is equal to 1/36.
Does 1 meter squared equal 1000 millimeters squared?
(1 metre) squared = (1000 mm) squared = 1000000 mm squared.
Is one liter equal to 1 decimeter squared or 1 centimeter squared?
Neither, one liter is equal to 1 decimeter cubed.
What does the number 1 squared equal?
one squared equals one.
Does 0 squared equal 1?
No, it equals 0. If you have nothing, and you multiply it by nothing, you still have nothing.
What does 1 squared by 5 equal?
There is no such thing as 1 SQUARED by 5. It is actually 1 to the 5th power, which is 1.
What is cosine squared theta equal to'?
Cosine squared theta = 1 + Sine squared theta
What is 1 squared radical 40 plus 3 squared radical 10 equal?
1 squared radical 40 is equal to 1 squared radical (4 x 10), and this become 2 squared radical 10. By adding 2 squared radical10 with 3 squared radical 10 we get 5 squared radical 10.
What 2 integers squared equal 65?
1 squared plus 8 squared or 4 squared plus 7 squared
Does 1 cm squared equal 1 liter?
No
What does i squared equal?
i = sqrt of (-1) ( imaginary) i squared = sqrt(-1) x sqrt (-1) = -1 (minus one)
What does 1 - tangent squared equal?
pineapple
Is a minus b squared the same as a squared minus b squared?
No, unless "a" happens to be equal to 0, or to 1.
