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A Garage door opener has six toggle switches, each with three settings: up, center, and down.
A) In how many ways can the switches be set?
B) If a thief knows the type of opener involved but does not know the setting, what is the probability that he or she can guess the setting on the first attempt?
C) How many settings are possible in which two switches are up, two are down, and two are in the center?
1) We are 99% confident that the proportion of patients surveyed that have experienced a reduction in symptoms is between 0.2112 and 0.6638. 2) We are certain that 99% of patients will be between 0.2112 and 0.6638. 3) We cannot determine the proper..
A sample of 36 packages reveals the mean weight to be 3.01 pounds, with a standard deviation of 0.03 poounds. What is the estimated population mean?
Here are numbers of right identifications by 24 children in Active group: 24 children in Passive group had these counts of correct identifications: Is there good evidence which active learning is superior to passive learning?
Assume that the mean SAT score in Mathematics for 11th graders across the nation is 500, and that the standard deviation is 100 points. Find the probability that the mean SAT score for a randomly selected group of 150 11th graders is between 475 a..
Each of four tasters picks one coffee anyway (not knowing which is which, because the coffee is in identical cups). What is the probability that a) All four tasters choose Tasty Bean?
Use Chebyshev’s Inequality to solve this problem. Show your work. A machine used to fill cereal boxes dispenses on average µ ounces per box. The manufacturer wants the actual amount dispensed, Y , to be within 1 ounce of µ at least %93 of the time. W..
Develop a hypothetical table of data using a grid of 3 rows and four columns.
question if a point inside a sphere is selected at random what is the probability that the point is nearer to the
Find out coefficient of correlation between variables. Interpret the value.
This second sample had an average response of 132 with a sample variance of 16. What is the pooled standard deviation for this problem?
One side of a rectangular stage is 2 meters longer than the other. If the diagonal is 10 meters, than what are the lengths of the sides?
Classifcation Which of the following are continuous variables and which are discrete?
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