Relationship between data and variables
What are data? What is the relationship between data and variables? Explain coding data for collection and reporting purposes?
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Question: Consider the following record of sales for a product for the last 100 days. a. What was the probability of selling 1 or 2 units on any one day?
A missile guidance system has five fail-safe components. The probability of each failing is 0.05. Find these probabilities. Exactly two will fail.
The lifetime of a certain type of colour television picture tube is known to follow a normal distribution with a mean of 4600 hours and a standard deviation of 400 hours.
The mayor of Daisy City makes $2,250 a month. What percentage of Daisy City's residents has incomes that are more than the mayor's?
If management wishes to establish x¯ control limits covering the 95% confidence interval, calculate the appropriate UCL and LCL.
Search the Internet for the latest figures you can find on the age and sex of the Australian population.
A set of n =20 pairs of scores (X and Y values) has SSX = 25, SSY = 16, and SP = 12.5. Find the regression equation for predicting Y from the X values.
Which one of the following aspects of a program's acquisition strategy is LEAST likely to be of interest to the business financial manager?
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Which one of the following variables is notcategorical? A) Age of a person. B) Gender of a person: male or female. C) Choice on a test item
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