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The owner of a farmer's market was interested in determining how many oranges a person buys when they buy oranges. He asked the cashiers over a weekend to count how many oranges a person bought when they bought oranges and record this number for analysis at a later time. The data is given below in the table. The random variable x represents the number of oranges purchased and P(x) represents the probability that a customer will buy x oranges. Determine the variance of the number of oranges purchased by a customer.
x 1 2 3 4 5 6 7 8 9 10
P(x) 0.05 0.19 0.20 0.25 0.12 0.10 0 0.08 0 0.01
a. What is the mean the number of oranges purchased?
b. What is the standard deviation for the number of oranges purchased?
The margin of error for a confidence interval used for an opinion poll takes into account the fact that people who did not answer the poll questions may have had different responses from those who did answer the questions.
In the game of bridge, a player is dealt a hand of 13 playing cards from a standard 52 card deck. A hand is said to have a void in a suit if it contains no cards in that suit
how many commuters must be randompy selected to estimate the mean of driving time of chicago commuters? we want 98
A sample of 450 responses is shown in worksheet "Proportion". Develop a 90% confidence interval estimation for proportion of "Yes". Then, Enter "Response of Interest" (Yes), and Excel formulas for "Count for Response" (COUNTIF()) and "Sample Size" ..
Consider the following linear programming problem: A workshop of Peter's Potters makes vases and pitchers. Profit on a vase is $3.00; profit on a pitcher is $4.00. Each vase requires ½ hour of labor, each pitcher requires 1 hour of labor.
The primary factors being investigated were vitamins A and E (measured in international units per month). Data for 1500 women over 54 years of age are given in Table E1.19. Calculate the odds ratio associated with a decrease (exposure is low consu..
the expected number of typographical errors on a page of a certain magazine is 0.2. typographical errors occur randomly
In the absence of outliers, do you think the distribution of salaries is symmetric, skewed to the left, or skewed to the right?
You will be required to provide an historical geography narrative on the following broad theme:
Lower values on the IAS test suggest the person is less inclined to be close and personal. Explain the meaning of rSin the context of this problem.
Compare a tabular cum sum chart using standardized values h = 5 and k = 1/2. What is the information you learn.
question 1 a survey found that the average hotel room rate in new orleans is 89 and the average room rate in phoenix is
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