# Statistics

How does the standard deviation differ to of the sample mean x bar.

1. 👍 0
2. 👎 0
3. 👁 142
1. The sample mean is a measure of central tendency, while the standard deviation is a measure of variability.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Statistics

The following is a histogram (right skewed) of the first ten terms of a geometric distribution with p = .4. The mean of this distribution is 2.5 and the standard deviation is approximately 1.93. What's the shape of the

asked by Jim on February 18, 2016
2. ### statistics

what are the mean and standard deviation of a sampling distribution consisting of samples of size 16? these sameples were drawn from a population whose mean is 25 and who standard deviation is 5. a. 25 and 1.25 b. 5 and 5 c. 25

asked by helga on February 1, 2009
3. ### Statistics

A sample of 12 measurements has a mean of 24 and a standard deviation of 4.5. Suppose that the sample is enlarged to 14 measurements, by including two additional measurements having a common value of 24 each. Find the standard

asked by Nao on January 24, 2009
4. ### Statistics

If the standard deviation of a sample is 4.3 for 28 data values, what would the standard deviation be fore the population from which the sample was drawn?

asked by Leisa on January 30, 2013
5. ### Statistics

A large furniture store has begun a new ad campaign on local television. Before the campaign, the long term average daily sales were \$24,819. A random sample of 40 days during the new ad campaign gave a sample mean daily sale of

asked by Matt on May 9, 2012
1. ### Math

1. An assembly line produces widgets with a mean weight of 10 and a standard deviation of 0.200. A new process supposedly will produce widgets with the same mean and a smaller standard deviation. A sample of 20 widgets produced by

asked by Mohan Sai on December 4, 2015
2. ### statistics

An SRS of size n is taken from a large population whose distribution of income is extremely right-skewed and the mean income is calculated. Which of the following statements is false? a) When n > 30, the sampling distribution of

asked by Anna on April 17, 2012
3. ### statistics

population has mean 53 and standard deviation 12. Calculate the standard deviation of x bar for a random sample of size 12.

asked by Bridget on August 18, 2014
4. ### statistics

A student was asked to compute the mean and standard deviation for the following sample of n _ 5 scores: 81, 87, 89, 86, and 87. To simplify the arithmetic, the student first subtracted 80 points from each score to obtain a new

asked by Liz on June 22, 2011
5. ### statistics

A researcher administered a treatment to a sample of participants selected from a population of 80. If the researcher obtains a sample mean of M=88. Which combination of factors is most likely to result in rejecting the null

asked by Robbie on November 9, 2012
6. ### Math ---HELP!!!!!

The mean score on the exit examination for an urban high school is 63 with a standard deviation of 9. What is the standard deviation of the distribution of sample means with a sample size of 9? A. 2 B. 3 C. 4 D. 4.1 answer B

asked by angela on May 5, 2016