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An instant lottery ticket costs $2. Out of a total of 10,000 tickets printed for this lottery, 1000 tickets contain a prize of $5 each, 100 tickets have a prize of $10 each, 5 tickets have a prize of $1000 each, and 1 ticket has a prize of $5000. Let x be the random variable that denotes the net amount a playr wins by playing this lottery. Write the probablity distribution of x. Determine the mean and standard deviation of x. How will you interpret the values of the mean and standard deviation of x?
Describe what do you mean by conditional probability. Give clinical example to support the explanation.
Of the adults in Jefferson County, 10 percent have had CPR training. For a randomly selected group of students from this county, how large will the group have to be in order for the probability that have as a minimum one group member has had CPR t..
Determine the pairs which are significant according to LSD and what pairs are important according to Bonferroni?
Compute the mean, median, mode and standard deviation for the following discrete probability distribution.
He randomly samples 45 oil wells throughout the United States and determines the mean output to be 10.7 barrels per day with a standard deviation of 1.3 barrels. Test the researcher's claim at the .025 level of significance.
Of the 1,4000 homemakers sampled, 420 were able to identify the brand by name. Compute the standard error of the proportion.
What is 95% confidence interval estimate for average number of years served by all Supreme Court justices?
No estimate of the population proportion is available. How large a sample is required?
How do we decide if the homogeneity of variance assumption is significantly violated?
A random sample of 100 students at Southern University was collected. The mean age was found to be 24.2 years, with a standard deviation of 3.4 years.
Let be the average of the pay you receive for the first and second week. Find the sampling distribution
What is the probability that a randomly selected automobile manufactured by the company will have a defective microprocessor?
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