The chi-squared statistic is calculated by summing (O-E)2/E where E and O are the expected and observed values for some category, and the summation is carried out over all categories.
The expected number of observations for any category cannot be negative, and the numerators are squares so each element in the summation is non-negative. Consequently the sum is non-negative.
No the Km can never be a negative value. The Km increases or decreases with temperature. An incorrect calculation can produce a negative value.
Because when you find the absolute value you're finding the distance a number is from zero without considering its sign (+ or -). You just have to make the number positive.
It depends on what the value of x is. If x is a positive number, then it will be negative because a negative number multiplied by a positive number is negative. If x is a negative number, then it will be positive because the product of two negative numbers is always a positive number.
true (that's the whole point of absolute value)
its 16, because the value of the power is even so the negative has no effect.
3 because absolute value has to be positive never negative
Because an absolute value can never be negative.
Because that is the definition of absolute values
i don't know. i think very complicated.
Sample Response: The absolute value of a number is the distance the number is from 0 on a number line. Since distance is never negative, absolute value is never negative.
No the Km can never be a negative value. The Km increases or decreases with temperature. An incorrect calculation can produce a negative value.
negative
iT IS NEVER NEGATIVE, IT IS ALWAYS POSITIVE
An absolute value can never be a negative. An absolute value is just the distance the # is from the zero...so again for it to be negative thats not possible
If it had a sign it wouldn't be an absolute value, which is neither positive nor negative, merely absolute.Note that the absolute value of a number is non-negative by definition.For x < 0, |x| = -x (which is positive)For x ≥ 0, |x| = x (which is never negative)
If it had a sign it wouldn't be an absolute value, which is neither positive nor negative, merely absolute.Note that the absolute value of a number is non-negative by definition.For x < 0, |x| = -x (which is positive)For x ≥ 0, |x| = x (which is never negative)
If it had a sign it wouldn't be an absolute value, which is neither positive nor negative, merely absolute.Note that the absolute value of a number is non-negative by definition.For x < 0, |x| = -x (which is positive)For x ≥ 0, |x| = x (which is never negative)