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Let X be binomial with parameters n=15 and p=.2
(a) Find the expression for density for X
(b) Find the expression for the moment generating function for X
(c) Find E[X], E[X^2] and Var[X]
(d) Find P[X <=1] by evaluating the density directly.
Calculate appropriate summary statistics. Incorporate these graphs and statistics into a well written summary. How could you apply statistical critical thinking in this situation?
What does the coefficient of determination tell you about the variation in attendance and the variation in the number of exhibitors?
A recent article in the Myrtle Beach Sun Times reported that the mean labor cost to repair a colour television is $90 with a standard deviation of $22. Monte's TV Sales and Service completed repairs on two sets this morning. The labor cost for the..
question 1. in an article a random sample of 42 felons convicted of impulsive murder was compared to a random sample of
For the primary independent variable, at least two research sources that discuss the variable also must be cited. These sources need not be technical documents but should contain evidence to justify the relationship between
According to the Insurance Institute of America, a family of four spends between $400 and $3800 per year on all types of insurance. Suppose the money spent is uniformly distributed between these amounts.
an object is in simple harmonic motion. find an equation for the motion given that the frequency is 4pi and at time t
someone suggests that the lifetime t in days of a certain component can be modeled with the weibull distribution with
a coin that has been altered so that the probability of ?ipping heads is 0.4 is ?ipped twice. let x be the number of
What type of test is described below and can you provide the null and alternate hypothesis? Using an old manufacturing process.
Over the last year the absentee rate at a large corporation averaged 8.2 days absent with a standard deviation of 6 days. One department with 40 employees had an absentee rate of 12 days per employee.
A number of minor automobile accidents occur at various high-risk intersections. A study was done. Eight intersections were chosen at random. The number of minor accidents during a 6-month period before and after the modifications were:
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