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[DOC File]Math 224 – Elementary Statistics
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The mean grade point average of the engineering majors at a large university is 3.23, with a standard deviation of 0.72. In a class of 48 students, find the probability that the mean grade point average of the students is less than 3.15. The average age of accountants is 43 years, with a standard deviation of 5 years.
probability using mean standard deviation

[DOC File]Probability & Statistics
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The mean for the female students was 10 hours and the standard deviation was 3.5 hours. a.Consider the following interpretations of the standard deviation and circle those that are correct. On average, the number of hours spent studying statistics varied from the …
finding probability with standard deviation

[DOCX File]Lab 2: Probability and Random Variables - Open Michigan
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The spread or standard deviation of the distribution will be, . Example 5.9 The mean and standard deviation of the proportion (60%) of the survey respondents (2500 people) who find shopping frustrating are .. Figure 5.3 Probability histogram of the sample proportion based on a binomial count with and . The distribution is very close to normal.
mean standard deviation probability calculator

[DOC File]X ~ N(10,3)
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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 0.65 meters.
standard deviation of a probability dist

[DOC File]Chapter 5: From Probability to Inference
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The number of standard deviations is 2.58 (found by looking in the z table where the probability is 0.495 - you might just as reasonably use 2.57 or 2.575). In this case we have a sample from a normal distribution with a known standard deviation, so we can use Formula #1 (see the Confidence Interval Formulae sheet).
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[DOC File]Columbia University in the City of New York
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CHAPTER 6: THE NORMAL PROBABILITY DISTRIBUTION. Exploring the Normal Probability Distribution. X ~ N( (, a. The normal distributions above have means µ = 5, µ = 10 and µ = 0. Identify which graph has which mean. b. The normal distributions above have standard deviations of ( = 0.5, ( = 1 and ( = 2. Identify graph has which standard deviation.
statistics standard deviation probability

How to calculate probability in a normal distribution given mean a…
Give the probability for the following based on the MINITAB calculations with the probability of a success being ½. (Complete sentence not necessary) Calculate the mean and standard deviation (by hand) for the MINITAB created binomial distribution with the probability of a success being ½.
small vs large standard deviation

Probability based on standard deviation