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1. A manager of a gasoline filling station is thinking about a promotion that she hopes will bring in more business to the full-service island. She is considering the option that when a customer requests a fill-up, if the pump stops with the dollar amount at $9.99, the customer will get the gasoline free. Previous studies show that 70% of customers pay $10.00 or more when they fill up their gas tanks, so they would not be eligible for the free gas. What is the probability that a customer will get free gas at this station if the promotion is implemented?
2. The television schedule lists three different sitcoms in each of the three consecutive 30-minute time slots on channels, 2, 6, and 7
a) What is the probability that a person will randomly select programs using all three stations over the course of the 1.5 hours
b) Suppose you know that the person who will randomly select programs will watch at least two of the sitcoms on the same channel. Determine the probability that the person will watch all three sitcoms on the same channel
Different approaches for creating systems simulation models include?
For following scores determine values of each expression: X: 4, 2, 1, & 5. åX, åX 2 , (åX) 2 , å(X-1).
Given the following ordered data pairs (x, y), compute the value of the linear correlation coefficient r: (2,6) (3,0) (5,15) (5,5) (10,2).
Comment on their success or failure to meet this goal.
Decide if the events A and B are mutually exclusive or not mutually exclusive. A card is drawn from standard deck of 52 playing cards.
According to T-100 Domestic Market, the top seven airlines in the United States by domestic boardings in a recent year were Southwest Airlines with 81.1 million, Delta Airlines with 79.4 million, American Airlines with 72.6 million, United Airline..
At 95% level of confidence, can we conclude that the babies using the Gibbs product gained less weight?
Diastolic blood pressure are assumed to follow a normal distribution with a mean of 85 and a standard deviation of 12.
In a transportation problem with 5 supply points, 3 demand points, and total supply equaling total demand, the number of decision variables will be:
The researcher was interested in how well what he/she manipulated predicts how happy subjects feel at the end of the procedure. Using the data below, calculate the regression constants and present the equation for the regression line.
Find the sample size for the 95% confidence interval used to estimate the population proportion.
Let x be a random variable that represents a test score. What is the lowest score that would still place a student in the top 40% of the scores?
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