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1. A committee consisting of 6 people to be selected from eight parents and four teacher. Find the probability of selecting three parents and three teacher.
2. You are dealt one card from a 52- card deck. Then the card is replaced in the deck, the deck is shuffled, and you draw again. Find the probability of getting a five each time.
3. You are dealt one card from a 52- card deck. Then the card is replaced in the deck, the deck is shuffled, and you draw again. Find the probability of getting a picture card the first time ad a spade the second time.
4. A architect is considering bidding for the design of a new shopping mall. The cost of drawing plan a submitting a model is $10,000. the probability being awarded the bid is 0.09, and anticipated profit are $100,000,resulting in a possible gain of this amount minus the $100,000 cost for plans and a model. What is the expected value in this situation?
a weather forecaster predicts that the may rainfall in a local area will be between 1 and 7 inches but has no idea
The mean and variance of the total amount of money that is collected from a car that crosses the bridge are:
The amount of money spent by a customer is uniformly distributed over (0, 100). Find the mean and variance of the amount of money that the store takes in on a given day.
An experiment was conducted at the University of California-Berkeley to study the effect of psychological environment on the anatomy of the brain. A group of 19 rats was randomly divided into two groups. Twelve animals in the treatment group lived..
Find out if a difference between two response sets is significant. I asked 98 boys what modalities they thought were attractive to girls. 35 said athletes; 25 said tough guys. The rest endorsed other modalities at lesser rates.
a small business just leased a new computer and color laser printer for three years. the service contract for the
find the weighted mean for three exams if the first one was worth 20 and the student received a 70 the second was worth
What is the probability that two of absent students were girls.What is the probability that two of absent students were boys.
Researcher has 100 test subjects to split into his treatment and control groups. In order to prove any causal relationship between treatment and outcome, he should:
an economic department at a state university with five faculty members-anderson box cox carter and davis-must select
The number of children, x, belonging to each of eight families registering for swimming was 2, 2, 2, 4, 2, 1, 2, 2. Find the mean, x. (Give answer correct to 2 decimal places.)
Test the claim that for the adult population of one town, the mean annual salary is given by μ = $30,000.
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