Question 1 0 out of 10 points
By changing the value of one score in a sample this will necessarily cause the mode to change.
? Question 2 10 out of 10 points
With grouped scores, the mode is the mid-point of the interval with the highest frequency.
? Question 3
0 out of 10 points
The median is less subject to sampling variation than the mean.
? Question 4 10 out of 10 points
We use N ? 1 in the denominator of the equation for calculating the sample standard deviation because it provides us with an accurate estimate of the population standard deviation.
? Question 5 10 out of 10 points
The equation for standard deviation is the same regardless of whether the scores are of a sample or a population.
? Question 6 0 out of 10 points
In a skewed distribution, the mean and median are equal.
? Question 7 10 out of 10 points
The formula for the population standard deviation is
? Question 8
10 out of 10 points
The mode is used extensively in the behavioral sciences.
? Question 9 0 out of 10 points
The variance is the square root of the standard deviation.
? Question 10 0 out of 10 points
For data that are not normally distributed, the standard deviation will sometimes be negative.
