In a recent survey, 66% of the community favored building a police substation in

Question

In a recent survey, 66% of the community favored building a police substation in their neighborhood. If 14 citizens are chosen, find the probability that exactly 11 of them favor the building of the police substation. A company ships computer components in boxes that contain 20 items. Assume that the probability of a defective computer component is 0.2. Find the probability that the first defect is found in the seventh component tested. Round your answer to four decimal places. A sales firm receives an average of four calls per hour on its toll-free number. For any given hour, find the probability that it will receive exactly nine calls. Use the Poisson distribution. A teather figures that final grades in the statistics department are distributed as: A, 25%; B, 25%; C, 40%; D, 5%; F, 5%. At the end of a randomly selected semester, the following number of grades were recorded. Determine if the grade distribution for the department is different than expected. Use alpha = 0.01. Solve the problem. license plates are made using 3 letters followed by 3 digits. How many plates can be made if repetition of letters and digits is allowed? Identify the sampling technique used. A researcher randomly selects and interviews fifty male and fifty female teachers. systematic convenience random stratified duster Solve the absolute-value inequality. |8-x| ge 5

Explanation / Answer

2) PROBABILITY OF PEOPLE WHO ARE IN FAVOR = 0.66

PROBABILITY OF PEOPLE WHO ARE AGAINST = 1- 0.66 = 0.34

TOTAL PEOPLE WE HAVE = 14

P(X=11) = 14C11*(0.66)^11*(0.34)^3 = 0.1480

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