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Laura is training for a week-long mountain cycling tour. She has 12 short hilly routes from which to choose mid-week rides.
a) How many ways can she choose 4 different rides from the list for the first week's training if order matters?
b) How many ways can she choose 4 different rides if order does not matter?
c) If she has chosen the first weeks rides, how many ways can she choose four more different rides for the second week? Assume that order does not matter.
A teacher gave a 25 question multiple choice test. After scoring the tests, she computed a mean and standard deviation of the scores. The standard deviation was 0. Based on this information
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Compute SS, variance, and standard deviation for following population of N = 7.Scores: 8, 1, 4, 3, 5, 3, and 4. The definitional formula works well with these scores. Use the definitional formula to compute SS.
Pattern that most accurately represents mean, median and mode is?
A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho = 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.
Explain which indicate that changes in the concentration of carbon dioxide which cause changes in the global temperature
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 foll..
Ace Jack had no idea whether the $100,000 he pays for training for his used car salespeople works.
Show the graph of the probability density function for flight time.
In a regression model involving 30 observations, the following estimated regression equation was obtained:
Real estate agents always say "location, location, location" is the most important thing in buying a house. We want to know if the sales prices of homes in two neighborhoods are similar. A random sample is taken from each neighborhood. The prices ..
To test this notion, eight paid volunteers were placed (individually) in a room in which there was no light from the outside and no clocks or other indications of time.
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