Standard deviation to probability
Chapter 7
The standard deviation of the distribution is between –1 and 1. The distribution may be displayed using a probability histogram. Part II – Free Response (Questions 11-12) …
Standard deviation - Wikipedia
Ex #1: If thermometers have an average (mean) reading of 0 degrees and a standard deviation of 1 degree for freezing water, and if one thermometer is randomly selected, find the probability that, at the freezing point of water, the reading is less than 1.58 degrees.
[DOC File]Columbia University in the City of New York
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What is the probability of getting a raw score between 41 and 44? 9%. ... Women’s heights have a mean of 63.6 in. and a standard deviation of 2.5 inches. Find the z score corresponding to a woman with a height of 70 inches and determine whether the height is unusual. Z = (70 – 63.6)/2.5 = 2.56 ...
[DOCX File]www.cbsd.org
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12.You have two instruments with which to measure the height of a tower. If the true height is 100 meters, measurements with the first instrument vary with mean 100 meters and standard deviation 1.2 meters. Measurements with the second instrument vary with mean 100 meters and standard deviation …
[DOC File]AP Statistics
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b) the standard deviation of the sample mean is the same as the standard deviation from the original population c) the mean of the sampling distribution of is the population mean. d) always has a Normal distribution. 7. Which of the following is true about p-values? a) a p-value must be between 0 and 1.
[DOC File]Exam 3 Practice Questions
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The probability distribution of the number of child tickets purchased by a single customer is given in the table below. Compute the mean and the standard deviation of C. μ C = 1.1 tickets σ C =1.22 tickets . Suppose the mean and the standard deviation for the number of adult tickets purchased by a single customer are 2 and 1.2, respectively.
[DOC File]ASSIGNMENT Chapter 5
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(mean,standard deviation) lognormal distribution with specified mean and standard deviation RiskNegbin (s,p) negative binomial distribution with s successes and p probability of success on each trial * RiskNormal (mean,standard deviation) normal distribution with given mean and standard deviation RiskPareto (theta,a) pareto distribution * RiskPert
[DOC File]Z-Score Practice Worksheet
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The mean and standard deviation of the startle responses were 37.9 and 12.4,respectively. Assume that the startle response x for a person with the specified blood alcohol level is approximately normally distributed. a. Find the probability that x is between 40 and 50 milliseconds. b. Find the probability that x is less than 30 milliseconds. c.
[DOCX File]Humble Independent School District
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Probability Economic Scenario DJIA Fund Growth Stock 0.2 Recession -$100 -$200 0.5 Stable Economy +$100 +$50 0.3 Expanding Economy +$250 +$350 Calculate the expected value and standard deviation for the dollar return per $1000 invested for each of the two investments.
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