# Question: a What is the range b Why is it not the

(a) What is the range?

(b) Why is it not the most accurate measure of variability?

(c) When is it used as the sole measure of variability?

(b) Why is it not the most accurate measure of variability?

(c) When is it used as the sole measure of variability?

**View Solution:**## Answer to relevant Questions

(a) What do both the variance and the standard deviation tell you about a distribution? (b) Which measure will you usually want to compute? Why? In an English class last semester, Foofy earned a 76 (X = 85, SX = 10). Her friend, Bubbles, in a different class, earned a 60 (X = 50, SX = 4). Should Foofy be bragging about how much better she did? Why? In a normal distribution, what proportion of all scores would fall into each of the following areas? (a) Between the mean and z = +1.89; (b) Below z = -2.30; (c) Between z = -1.25 and z = +2.75; (d) Above z = +1.96 and below ...A researcher reports that a sample mean produced a relatively large positive or negative z score. (a) What does this indicate about that mean’s relative frequency? (b) What graph did the researcher examine to make this ...(a) What are the steps for using the standard normal curve to find a raw score’s relative frequency or percentile? (b) What are the steps for finding the raw score that cuts off a specified relative frequency or ...Post your question