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Find the probability that the roots of the equation x2 + 2X1x + X2 = 0 will be real if (i) X1 and X2 are randomly chosen between 0 and 1, (ii) X1 is randomly chosen between 0 and 1, and X2 is randomly chosen between -1 and 1.
For a normally distributed random variable with mean -44 and standard deviation 16, find the probability that the value of the random variable will be above 0.
Based on data from the college board assume SAT scores are normally distributed with a mean of 1518 points and a standard deviation of 325 points? If a sample of 100 students is taken taken what is the mean and standard deviation of the distribut..
the probability that a person owns a car pcar 0.80 that a person owns a boat pboat 0.30 and that a person owns both a
the number of meals served in a week at caths cafeacute is normally distributed with a mean of 6000 and a standard
Assume that dyes are produced in batches, with 10 random samples taken from each of three batches. Explain possible special causes in the process.
Using the t tables, software, or a calculator, estimate the critical value of t for a 95% confidence interval with df = 7.
A cash flow diagram indicates the amounts paid or received by a stakeholder. For the operations and maintenance of a typical transit system in your community, list the amounts typically encountered in the cash flow stream over the life of the syst..
Statistics: A certain insecticide kills 60% of all insects in laboratory experiments. A sample of 14 insects is exposed to the insecticide in a particular.
suppose you want to estimate the proportion of people in your community who would choose thin mints as their favorite
If they have 18 trucks, what are the mean and standard deviation of the total number of parking tickets the company will have to pay this month?
Tomorrow morning when you first arise, pick a three-digit number (anything from 000 to 999). You can choose randomly or simply decide what number you want.
The population's standard deviation is 2.00 hours per week. Based on a sample of 49 students, Healthy Lifestyles Incorporated (HLI) would like to apply the central limit theorem to make various estimates.
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