1) Construct a table describing the probability distribution, then find the mean and standard deviation. (Hint: List the different possible outcomes.)
2) Is it unusual for a family of four children to consist of four girls?
A population of values has a normal distribution with
Find the probability that a single randomly selected value is between 133.6 and 134.1.
Write your answers as numbers accurate to 4 decimal places.
We wish to estimate what percent of adult residents in a certain county are parents. Out of 600 adult residents sampled, 192 had kids. Based on this, plot a
Express your answer in the form of three inequalities. Give your answers in decimal fractions up to three places
Given a random sample size of n = 900 from a bi- nomial probability distribution with P = 0.10 do the following:
Find the probability that the number of successes is greater than 110.
Find the probability that the number of successes is fewer than 53.
Find the probability that the number of successes is between 55 and 120.
With probability 0.10, the number of successes is fewer than how many?
Withprobability0.08,thenumberofsuccessesis greater than how many?
A population of values has a normal distribution with
Find the probability that a sample of size
Write your answers as numbers accurate to 4 decimal places.
The joint density function of two continuous random variables X and Y is:
Draw the integration boundaries and write the integration only for
A population of values has a normal distribution with
Find the probability that a sample of size
Write your answers as numbers accurate to 4 decimal places.