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Recent questions in Binomial probability

Brittney Lord 2021-09-22

What probability distribution might you use to describe the number of COVID19 infections per hospital in Los Angeles?
a. Poisson probability distribution
b. Continuous probability distribution
c. Standard normal distribution
d. Binomial probability distribution
Ten patients participated in a study to see if vitamin C can prevent colds. If each patient has a 45% change of catching a cold, what probability distribution could be used to predict the number patients with colds?
a. Poisson probability distribution
b. Continuous probability distribution
c. Standard normal distribution
d. Binomial probability distribution

bobbie71G 2021-09-22

A poll is given, showing 65% are in favor of a new building project.
If 9 people are chosen at random, what is the probability that exactly 4 of them favor the new building project?

Mylo O'Moore 2021-09-22

If 40% of all commuters ride to wirk in carpools, find the probability that if 8 workers are selected, five will ride in carpools. Define your random variance X and determine X has a binomial or a geometric distribution.

a2linetagadaW 2021-09-22

Suppose that during a recent 30-year period, there were eight volcanic eruptions sufficiently powerful to reduce the amount of power generated by solar panels by at least 20% for a period of a year. Call these "Class D20" volcanoes. Suppose that the return on investment from installing solar panels is often calculated over a 25-yearperiod. What is the probability that, during a 25-year period, there will be two or more "Class D20" volcanic eruptions?

ka1leE 2021-09-22

Suppose a certain breed of piglets have a sex-ratio of 0.54 (that is the probability of male piglets). If 5 piglets were born, what is the probability that 3 of them are male?

Chaya Galloway 2021-09-22

Find the probability that 3 persons are 65 or older.
Find the probability that 4 persons are 65 or older.

ddaeeric 2021-09-22

Drone Deliveries Based on a Pitney Bowes survey, assume that 42% of consumers are comfortable having drones deliver their purchases. Suppose we want to find the probability that when five consumers are randomly selected, exactly two of them are comfortable with the drones. What is wrong with using the multiplication rule to find the probability of getting two consumers comfortable with drones followed by three consumers not comfortable, as in this calculation: (0.42) (0.42) (0.58) (0.58) (0.58) = 0.0344?

tinfoQ 2021-09-22

The probability of randomly sampling someone in my neighborhood and finding that they own a pet is 0.7. You randomly sample 6 people in my neighborhood. What is the probability that 5 OR MORE of them own a pet in any order? Give your answer as 0.XX

Elleanor Mckenzie 2021-09-22

A binomial probability is given. Write the probability in words. Then, use a continuity correction to convert the binomial probability to a normal distribution probability.
$ P (x < 86 )$
Write the probability in words.

emancipezN 2021-09-22

a) To Explain: the shape, centre and variability of the distribution of the random variable X-Y.
b) To calculate: the probability that a randomly selected DVD will fit inside randomly selected case.
c) To find: the probability that all DVDs fit in their cases.

Reggie 2021-09-22

Suppose that X has a hypergeometric distribution with $N = 500, n = 50, and K = 100$ . Find $P (X = 10)$ by combining the approximate binomial distribution with the hypergeometric distribution. Can we trust the binomial approximation?

Carol Gates 2021-09-21

a) To find out what is the probability that only 82 or fewer of a set of 248 patients have low bone density.
b) To find the probability in part (a) using the binomial probability model and how does it compare with the normal approximation.
c) To explain what would you suggest at the next physicians meeting based on the probability of this outcome.

CheemnCatelvew 2021-09-21

Give examples of values of n and p, both non-zero, for a binomial random variable X. Use either the binomial probability formula or the binomial probability cumulative distribution tables provided in class to calculate:
a) $P (X = x_{0})$ where $x_{0}$ is an integer of your own choice satisfying

$0 < x_{0} < n$ .
b) $P (X > x_{0})$

lwfrgin 2021-09-21

X denotes a binomial random variable with parameters n and p. For each exercise, indicate which area under the appropriate normal curve would be determined to approximate the specified binomial probability.
$P (4 < X \leq 8)$

Efan Halliday 2021-09-21

Find $P (x \leq 1 ∣ n = 15, p = 0.25)$ by using the binomial formula.

ddaeeric 2021-09-21

Find the model of number of successful contacts from 1,000 sampled households.

Rivka Thorpe 2021-09-21

A binomial probability is given. Write the probability in words. Then, use a continuity correction to convert the binomial probability to a normal distribution probability:
$P (x > 73)$
Write the probability in words.
The probability of getting _ 73 successes.
Which of the following is the normal probability statement that corresponds to the binomial probability statement?
A. $P (72.5 < x < 73.5)$
B. $P (x < 72.5)$
C. $P (x > 72.5)$
D. $P (x < 73.5)$
E. $P (x > 73.5)$

geduiwelh 2021-09-21

Take a look at experiment with 15 trials and probability 0.45 of success on a single trial.
(a) Use the binomial distribution to find the probability of exactly 10 successes.
(b) Use the normal distribution to approximate the probability of exactly 10 successes.

Chardonnay Felix 2021-09-21

a) Identify the appropriate type of probability distribution for the given data.
b) Find the probability of a student will have a good dream during final exam week.
c) Find the expected number of students should have bad dreams during final exam week.

abondantQ 2021-09-21

Assume the n trails is independent and that p is the probability of success on a given trail. Use the binomial probability formula to find $P (x) n = 5, x = 3, p = 0.3$

Binomial probability is one of those subjects that we learn during high school studies, yet good binomial probability examples are not mentioned in most cases, which doesn’t help to solve various questions or find the answers without turning to formulas that do not fit. It’s all about being able to calculate the probability as binomial probability problems can be compared to purchasing a lottery ticket where one can either win or leave without any luck. Addressing the lack of examples, we provide binomial questions and explain how certain answers have been found to address this or that binomial probability equation.

High school probability

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