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India is the second most populous country in the world, with a population of over 1 billion people. Although the government has offered various incentives for population control, some argue that the birth rate, especially in rural India, is still too high to be sustainable. A demographer assumes the following probability distribution of the household size in India. Household Size Probability 1 0.05 2 0.08 3 0.15 4 0.21 5 0.26 6 0.12 7 0.10 8 0.03
What is the probability that none of three randomly selected persons is allergic to this drug? Assume that all three persons are independent.
imagine that exam 1 for statistics 2160 this term will have 62 questions. each question has 5 multiple choice options
consider one city in a similar survey where the mean is working time is 508 minutes. assume the standard deviation of
A final exam in Statistics has a mean of 73 with a standard deviation of 7.73. Assume that a random sample of 24 students is selected and the mean test score of the sample is computed. What percentage of sample means are less than 70?
In the game of roulette, a ball is dropped into a spinning wheel, finally landing on one of the wheel's 38 different slots. The wheel has 18 black slots, 18 red slots, 1 green zero, and 1 green double-zero.
If a random sample of 225 pecan trees is selected, what is the standard deviation of the sample mean?
estimate the time required to provide a given laboratory procedure, suppose that we measured the amount of time required when the service was provided on 60 occasions.
the weights of professional baseball players follow a normal distribution with a mean of 200 pounds and a standard
Create a 90% confidence interval for proportion of all kernels that would not pop.
a local social service agency is asked to determine areas in the greatest need of social support. the neighbourhoods
In an article in the Journal of Management, Morris, Avila and Allen studied innovation by surveying firms to find the number of new products introduced by the firms.
Show the graph of the probability density function for flight time.
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