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At a certain university, 47.0% of the students are female. Also, 8.5% of the students are married females. If a student is selected at random, what is the probability that the student is married, given the student was female? Your answer should be a decimal fraction accurate to 3 decimal places.
It does not matter, when data are skewed mean and median are the same.
What is the expected number of crimes that will be solved? What is the standard deviation?
A consumer protection group is concerned that a ketchup manufacturer is filling its 20-ounce family-size containers with less than 20 ounces of ketchup.
If a random sample of 8 adults is selected from the city, find the probability that exactly 3 adults respond that they enjoy using public transportation.
As part of their application for a loan to buy Lakeside Farm, a property they hope to develop as a bed-and-breakfast operation, the prospective owners have projected:
Use the normal approximation to find the probability that the student scores 70% or lower on a 100-question test.
What is the probability that , of 20 randomly chosen drivers coming to an intersection under these conditions, a) At most 2 will come to a complete stop?
Four research participants take a test of mannual dexterity (high scores mean better dexterity) and anxiety test (high scores mean more anxiety). Scores are as follows:
The mean amount purchased by a typical customer at Churchill's Grocery Store is $23.50 with a standard deviation of $5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the follo..
This question is asking for speculation about the possible results of a study if we change the size of the population. It all depends on unknowns such as how representative the 100 adults are of the population.
Based on the custom "rule-of-thumb" for estimating the standard deviation, if the range of prices for a product sold in Kansas City is between $99 and $349, an estimate of the standard deviation of the prices would be about:
They estimated the proportion of students at the university who prefer outdoor exercise as (0.5745, 0.8217), with 95% confidence. Which of the following is an appropriate interpretation of this confidence interval?
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