On a test that has a normal distribution, a score of 37 falls two standard deviations above the mean, and a score of 21 falls two standard deviations below the mean. Determine the mean of this test.
On a test that has a normal distribution, a score of 37 falls two standard deviations...
In a normal distribution, a data value located 0.5 standard deviations below the mean has Standard Score: z = In a normal distribution, a data value located 2.4 standard deviations above the mean has Standard Score: z = In a normal distribution, the mean has Standard Score: z =
assume that the mean of a distribution of test score is 400, with a standard deviation of 45. What would be the value of the score that falls two standard deviations above the mean?
assume that the mean of a distribution of test score is 400, with a standard deviation of 45. What would be the value of the score that falls two standard deviations above the mean?
Lee's first history exam score is +2 standard deviations from the mean in a normal distribution. The test has a mean of 65 and a standard deviation of 5. Lee's percentile rank would be approximately _____. a.97.5% b.65 % c.75 % d.none of the above
In a normal distribution, the mean corresponds to: Standard Score: z = Percentile: Which of the following statements are TRUE about the normal distribution? Check all that apply. A data value with z-score = -1.5 is located 1.5 standard deviations below the mean. The mean corresponds to the z-score of 1. The Empirical Rule only applies when a value is exactly 1, 2, or 3 standard deviations away from the mean. A z-score is the number of standard deviations a...
Assuming that the population (or sample) has a normal distribution, how many standard deviations above and below the mean contains 99% of the population (or sample)?
The difference between a standard score of -1.0 and a standard score of 1.0 is a) the standard score 1.0 is farther from the mean than -1.0 b) the standard score -1.0 is farther from the mean than 1.0 c) the standard score 1.0 is above the mean while -1.0 is below the mean. d) the standard score -1.0 is above the mean while 1.0 is below the mean. 16 17 If the test scores on an art history exam...
In a distribution of scores, a score value (X) has a z-score of 2. How would interpret z-score of 2. Select one: O a. The particular score (X) is two standard deviations above the mean. b. The particular score (X) is two points above the mean. c. The particular score (X) is two points below the mean. d. The particular score (X) is two standard deviations below the mean.
In a normal distribution, what does it mean that “the score of 75 was 2 standard deviations away from the mean?
According to the Empirical Rule, what percentage of a normal population falls between 2 standard deviations left of the mean and 3 standard deviations right of the mean?