/** * findHighestDie * This method will determine the highest value on the * three dice * @return the highest value */
Write the method that matches this comment.
In: Computer Science
The number of customers per day at a sales counter, Y , has been observed for a long period of time and found to have mean 20 and standard deviation 2. The probability distribution of Y is not known. What can be said about the probability that, tomorrow, Y will be greater than 16 but less than 24?
In: Statistics and Probability
The cell number of a senator was published on Twitter. Following a Poisson distribution, the rate at which calls were coming through was 1.5 per minute.
a. What is the probability that no call came through in a one-minute period?
b. What is the probability that less than 180 calls came through in a two-hour period?
In: Statistics and Probability
At the Statsville County Fair, the probability of winning a prize in the basketball toss game is 0.1.
a) Show the probability distribution for the number of prizes won in 8 games (round to 6 decimal places).
b) If the game will be played 500 times during the fair, how many prizes should the game operators keep in stock?
In: Statistics and Probability
In 2018, 43% of American households still had a landline phone.
A random sample of 12 households is selected.
a) Find the probability that the sample contains exactly 4 households with a landline.
b) Find the probability that at least one household has a landline.
c) Find the mean and standard deviation for the number of households with a landline.
In: Statistics and Probability
pA box of five batteries of whom only two are good.Batteries will be tested in random order until a good one is identified to use for a flashlight. Let Ybe the number of batteries tested to identify a good one. Find the probability mass function of the random variable Y.
using probability mass function formula
In: Statistics and Probability
The probability that a student uses Smarthinking Online Tutoring on a regular basis is 0.35 . In a group of 21 students, what is the probability that exactly 8 of them use Smarthinking Online Tutoring on a regular basis? Write only a number as your answer. Round to 4 decimal places (for example 0.2416). Do not write as a percentage.
In: Statistics and Probability
Suppose that the number of weekly traffic accidents occurring in a small town is Poisson random variable with parameter lamda = 7.
(a) what is the probability that at leat 4 accidents occur (until) this week?
(b) what is the probability that at most 5 accidents occur (until) this week given that at least 1 accident will occur today.
In: Statistics and Probability
In a clinical study, volunteers are tested for a gene that has been found to increase the risk for a disease. The probability that a person carries the gene is 0.1. Assume independence. (a) What is the probability that five or more people need to be tested to detect two with the gene? (b) What is the expected number of people to test to detect two with the gene?
In: Math
Suppose the event of a student’s application to a university being accepted follows the binomial probability and the successful rate is 80%. Please finish the following tasks? (1) Determine the expected number of acceptances for the next 7 applicants and the standard deviation. (2) What is the probability that among the next 9 applicants exactly 5 will be accepted?
In: Math