A population has SS = 100 and σ2 = 4. What is the value of Σ(X – µ) for the population?

A sample of n = 9 scores has SS = 72. The variance for this sample is s2 = 9.

A sample with SS = 30 and a variance of s2 = 10 has n = 4 scores.

A sample of n = 5 scores has SS = 60 and s2= 15. If the 5 scores were a population, the value of SS would still be 60, but the variance would be σ2 = 10.

When calculating the standard deviation, it is customary to round to _____ decimal place(s).

For the following scores, which action will increase the range? Scores: 2, 6, 11, 15

A sample with a variance of s2 = 36 has a standard deviation equal to s = 6.

Multiplying every score in a sample by a constant value will change the value of the standard deviation.

A positive deviation score indicates that a score in a distribution is less than the mean.

If the population variance is 6, then the population standard deviation is σ = 36.