Statistics

posted by .

What is the mean and standard deviation of
63.7%?

What is the mean and standard deviation of
61.4%?

Using the 68-95-99.7 rule, describe the sampling distribution of 63.7%

Using the 68-95-99.7 rule, describe the sampling distribution of 61.4%?

Please help I am so lost...

  • Statistics -

    In probability and statistics, mean is used to refer to one measure of the central tendency either of a probability distribution or of the random variable characterized by that distribution.

    In statistics and probability theory, the standard deviation (represented by the Greek letter sigma, σ) shows how much variation or dispersion from the average exists. A low standard deviation indicates that the data points tend to be very close to the mean (also called expected value); a high standard deviation indicates that the data points are spread out over a large range of values.

  • Statistics -

    So, how would I figure out the standard deviation of 61.4?

  • Statistics -

    Z score is your score in arms of standard deviations.

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.6140) related to the Z score.

    Are you assuming that the scores are equally distributed around the mean? Then you would want
    ± .307

  • Statistics -

    1. Find the area associated with this section of the curve: between z = -1.15 and z = -1.35.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math (Statistic)

    Considered the sampling distribution of a sample mean obtained by random sampling from an infinite population. This population has a distribution that is highly skewed toward the larger values. a) How is the mean of the sampling distribution …
  2. statistics

    For a population with a mean of 30 and standard deviation of 6, describe the sampling distribution of the means for samples of N=9.
  3. Statistics

    hi i need help calculating the standard error using the central limit theorem. *a population of scores contains exactly 5 scores : 2, 3, 6, 8, 11, there are 5x5=25 samples of the two scores (n=2)* i already calculated the standard …
  4. Math- Statistics

    A random sample of size 36 is to be selected from a population that has a mean μ = 50 and a standard deviation σ of 10. * a. This sample of 36 has a mean value of , which belongs to a sampling distribution. Find the shape …
  5. Statistics

    A random sample of size 36 is to be selected from a population that has a mean μ = 50 and a standard deviation σ of 10. - - Find the mean of this sampling distribution. - Find the standard error of this sampling distribution.
  6. 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?
  7. Statistics

    What is the mean and standard deviation of 63.7%?
  8. statistics

    For an IQ test, we know the population mean = 100 and the standard deviation =16. We are interested in creating the sampling distribution when N = 64. (a) What does that sampling distribution of means show?
  9. 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 distribution …
  10. Stat

    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?

More Similar Questions