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The table shows the ages of students in a freshman orientation course,
Age - 17 18 19 20 21 22
Students - 2 13 4 3 2 1
a) construct a probability graph
b) graph the probability distribution using a histogram and describe its shape
c) Find the mean, variance, and standard deviation of the probability distribution and interpret the results.
d) Find the probability that a randomly selected student is less than 20 years old.
I think that I could probably find the mean, variance, and standard deviation of a probability distribution but I don't know how to get to that point. Could I get help breaking down this problem so I can solve it and understand?
Which of the given signifies difference in two population proportions?
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Computing the probability values using normal distribution - The data set has a bell-shaped distribution. Between what two prices do 68% of the houses lie?
The accompanying data on cortisol level was reported in the article "Cortisol, Cortisone, and 11-Deoxycortisol Levels in Human Umbilical and Maternal Plasma in Relation to the Onset of Labor" (J. of Obstetric Gynaecology of the British Commonwealt..
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Given a normal distribution with a population mean of 100, a standard deviation of 10 and a sample size of n = 25, what is the probability that X is
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What is the probability that an individual owns a tablet computer given that they own a smart phone?
Identify a goal of the survey that would be of interest to the catering committee. (Hints: this goal may affect your answer to (b) through (d).)
two basketball players carmelo and jason independently attempt a free throw. the probability that jason makes his free
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