Elmo is offered an afternoon babysitting job that will last 10 days. The parents who want to hire him offer two plans for payment. Plan A: Elmo will receive a single payment of $200...
Elmo is offered an afternoon babysitting job that will last 10 days. The parents who want to hire him offer two plans for payment. Plan A: Elmo will receive a single payment of $200...
Bert bought a notebook for $4.75 and then spent half of his remaining money for a textbook. Next he bought sheet music for $4 and then spent half of the remaining money on a calculator. He had $8...
.6 .4 T= .55 .45
1. Suppose that in a town, everybody drives a Chevy, Ford or Honda. A survey indicates that of the current Chevy drivers, 25% will buy a Ford and 30% will buy a Honda next time...
If the current market share for each company is Chevy 45%, Ford 35% and Honda 20%, what is the market share for each company after the purchase of the next car...
Using digits from this set {1, 2, 3, 4, 5, 6, 7, 8, 9} , how many different 4 digit numbers can be formed if digits cannot be repeated and the 4 digit number must be odd...
Determine the truth value of (p <-> r) -> (p ^ q) if you are given these truth values for the simple statements: p is false, q is true, r is false...
An NBA player makes a successful free-throw 85% of the time. Find the probability that he is successful exactly 6 times in 7 attempts...
A club consisting of 6 men and 8 women will choose a committee of 5. In how many ways can ...
Given: n(U) = 80, n(A) = 42, n(AnB) =10, n(A'uB') =12. Find n(B).
A basketball player makes a successful free throw 86% of the time. Using the Normal approximation to the binomial, estimate the probability that he makes between 30 and 40 successful shots in 50 free...
The weight of smelt is a normal variable with mean 1.5 ounces and standard deviation of 0.2 ounces. Find the probability that a randomly selected smelt weighs more than 1.348 ounces.
The mean length of angelfish (a popular tropical fish for aquariums) is 11.4 cm with a standard deviation of 1.5 cm. Assuming that the length of angelfish is a normal random variable, find the probability...
Given a normal random X with mean 64 and a standard deviation 3, find Pr[63.04≤X≤70.96]
Given a normal random variable X with the mean 62 and a standard deviation 3, find Pr[X≤66.86]
The acidity of human blood is measured on a pH scale and is a normal random variable. The mean pH of blood is 7.2 with a standard deviation of 0.15. Find the probability that random selected...
x probability product xp 1 .20 4 .15 7 .40 10 .25 I need to find the expected value of x as well as the deviation...
a Jar contains 2 nickles and 4 quarters. You reach in and randomly choose 2 coins. Let x represent the value of 2 coins in cents. Find the value of x. I need to figure out how to make a table as well...
x is a binomial random variable with n=400 and p=.52. Find the expected value of x (the mean)
at least 4 decimal places....Assume that events A and B can only occur during the first stage of an experiment, and events C and D can only occur during the second stage of the experiment. Pr[A]=0...