help would be appreciated Which of the following cannot be a probability? Identi
ID: 3382857 • Letter: H
Question
help would be appreciated Which of the following cannot be a probability? Identify the given random variable as being discrete or continuous. The braking time of a car Determine whether the given procedure results in a binomial distribution. If not state the reason why. Choosing 8 marbles from a box of 40 marbles (20 purple, 12 red, and 8 green) one at a time without replacement, keeping track of the number of red marbles chosen. A quality control analyst wants to examine thermometers that give readings in the bottom 4%. Find the reading that separates the bottom 4% from the others. A police department reports that the probabilities that 0, 1, 2 and 3 burglaries will be reported in a given day are 0.49, 0.40, 0.10, and 0.01, respectively. Assume that a study of 500 randomly selected school bus routes showed that 478 arrived on time. Is it "unusual" for a school bus to arrive late? A survey for brand recognition is done and it is determined that 68% of consumers have heard of Dull Computer Company. A survey of 800 randomly selected consumers is to be conducted. For such groups of 80 would it be unsual to get 521 consumers who recognize the Dull computer company name?Explanation / Answer
Q5.
Mean ( np ) =1214.647
Standard Deviation ( npq )= 2377*0.511*0.489 = 24.3713
Normal Distribution = Z= X- u / sd
About 95% of the area under the normal curve is within two standard deviations of the mean. i.e.
(u ± 2*s.d)
So to the given normal distribution about 68% of the observations lie in between
=[1214.647 ± 2 * 24.3713]
= [ 1165.904, 1263.39 ]
Q6.B. -1
Q7.
A. Continuous
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