Let’s assume the odds of getting a disease indoors in a classroom is 15%. In a class of 28 students, what is the probability that… Question #4: Half of the students get the disease?

A class consists of 10 male and 30 female students. If one student is randomly selected from the class, what is the probability of selecting a male student?   Question 2 options:   10/30   10/40   1/10   1/40

If you have a sample of 100 patients at a hospital and 20 of them have the flu, what is the probability Of randomly selecting 3 patients in a row who have the flue?

The below was the answer I received when I asked the following question. Dr. Deming’s Red Bead Experiment is an exercise in the laws of probability. The workers were frustrated because no matter what they did, the outcome was not predictable. If the paddle holds 50 beads and there are 500 white beads and 50 red beads in the box, what is the probability, using one sample, of filling a paddle with 47 white beads and only three red beads? What I need to understand is how did you get the highlighed answers below because these require a factorial of 500 and I have not found anything that will calculate that. Thank you        Step 1 Given Information: Number of white beads = 500  Number of red beads = 50  Total number of beads = 550    Step 2 The probability, using one sample, of filling a paddle with 47 white beads and only three red beads can be determined as follows: Probability = C47500*C350C50550=(2.94*10^66) (19600)(3.44*10^71)=0.1675

You have 10 people with a cold and you have a remedy with a 20% chance of success. What is the chance that your remedy will cure at least one sufferer? O 0.107 O 0.268 0.624 O 0.893

Given the probabilities A=0.47, B=0.82, C=0.45, D=0.62, E=0.40. What is the probability that the engineer has made four wrong choices?

. The weather person predicts a 65% chance of snow. Based on this prediction, what is the probability that it will not snow?