Find the probability that a sample of size
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
In government data, a household consists of all occupants of a dwelling unit, while a family consists of 2 or more persons who live together and are related by blood or marriage. So all families form households, but some households are not families. Here are the distributions of household size and family size in the United States.
Let H = the number of people in a randomly selected U.S. household and F = the number of people in a randomly chosen U.S. family. Find the expected value of each random variable. Explain why this difference makes sense.
Random variable X and Y have the joint PDF
Find the marginal PDF