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A beam has a solid square cross section of 100mm and is simply supported by two supports 3 metres apart. Cauculate the dead load that can be safely supported when applied to the midle of the beam.
sigma = M/Z
M = 3W/4
Z = d^3/6
Sigma = (3W/4) / (d^3/6) now must rearrange the formula to find W and then substitute in the correct values.
The national average SAT score (for Verbal and Math) is 1028. If we assume a normal distribution with σ = 92, what is the 90th percentile score? What is the probability that a randomly selected score exceeds 1200?
specifically 68 of gen y people have a say in computer purchases. suppose you select a sample of 100 gen y
There are k types of distinct postcards. How many ways are there to send these postcards to n friends? (Each friend can get zero cards, also multiple copies of the same card.)
the producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. a random sample
Shows a sample mean of 1,261 with a standard deviation of 59. Should Pennsylvania adopt the new system for all toll roads in the state?
There are many nonparametric tests that have been developed over the years. Explain what nonparametric tests are and why they were developed.
Determine percentage of employees has 5 dependents? Of all employees which have at least one dependent, determine percentage has more than one?
the following question was put on a questionnairewhat was your last salary?a 0 -10000b 10001 - 20000c 20001 - 30000d
Each customer has probability p of being a home owner independently of all other customers. Let Y be the number of home owners registered. Show that Y~Poisson.
Without using formulas, explain the meaning of (a) expected value of a random variable; (b) actuarial fairness; and (c) variance of a random variable.
what is coefficient of dispersion. amp why coefficient word is used
Metro Real Estate Association is preparing a pamphlet that they feel might be of interest to prospective homebuyers in the Middletown and Brockton areas of the city.
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