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Recent questions in Binomial probability

boitshupoO 2021-09-24

A fair die is rolled 12 times. What is the probability of rolling a 4 on the die 4 times?

Brittney Lord 2021-09-24

a) To find: The probability that $Y = 0, 1, 2, 3$ using the binomial distribution.
Given information:
$n = 50$
$p = 0.01$
b) To find: The probability that $Y = 0, 1, 2, 3$ using the Poisson approximation.

texelaare 2021-09-24

Find the probability that exactly 6 of them are college graduates.

vazelinahS 2021-09-24

To define: The continuity correction.
To explain: The procedure for applying the continuity correction method for finding the probability if using the normal approximation to the binomial distribution is used for finding the probability.
Given info:
Out of 14 couples 13 of them had baby girls by using the preliminary test of the MicroSoft method of gender selection.

Maiclubk 2021-09-24

If X has a binomial distribution, $n = 5 and p = 0.4$ . Calculate the probabilities. of $X = 0$ .
a). -1.2321
b) 0.07776
c) 0.1073741824
d) 0.1534621

glamrockqueen7 2021-09-24

A Finite final consists of 50 multiple choice questions. If each question has 5 choices and 1 right answer, find the probability that a student gets an A (i.e. 45 or better) by purely guessing on each question.

Sinead Mcgee 2021-09-23

Calculate the probability of exactly 3 successes in 4 tries.
$p = 0.2$

slaggingV 2021-09-23

How can I get the probability of a binomial distribution if the values are between 6 and 9, and the number of trials is 19?

Ava-May Nelson 2021-09-23

A binomial probability distribution has $p = 0.20$ and $n = 100$
a. what are the mean and standard deviation?
b. Is this situation one in which binomial probabilities can be approximated by the normal probability distribution? Explain.
c. what is the probability of exactly 24 successes?
d. what is the probability of 18 to 22 successes?
e. what is the probability of 15 or fewer successes?

kuCAu 2021-09-23

Assume that a procedure yields a binomial distribution with a trial repeated $n = 5 n = 5$ times. Use some form of technology to find the probability distribution given the probability $p = 0.6 p = 0.6$ of success on a single trial.
(Report answers accurate to 2 decimal places.)
$Misplaced &$

Wierzycaz 2021-09-23

Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes (based on data from an LG Smartphone survey).
If 20 adult smartphone users are randomly selected, find the probability that exactly 15 of them use their smartphones in meetings or classes.

mattgondek4 2021-09-23

A dart board contains 20 equally-sized sectors numbered 1 to 20. A dart is randomly tossed at the board 10 times.
a) What is the probability that the dart lands in the sector labeled 20 a total of 5 times?
b) What is the expected number of times the dart would land in a given sector?

sibuzwaW 2021-09-23

The p-value.
Given: The size of the sample (n) is 15.

Khadija Wells 2021-09-23

In a large population, about 65% of families take a vacation during the summer. A researcher takes a random sample of 16 families and surveys whether they take a summer vacation.
Use the binomial distribution to compute the probability that exactly 8 of the families take a summer vacation.
Identify the following information required to find the probability of families that take a vacation during the summer.
Provide your answer below:
$n =$ trials
$x =$ successes
$p =$ probability of summer vacation

vazelinahS 2021-09-23

In Exercises, 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.
$P (4 < X < 8)$

illusiia 2021-09-23

A new experimental process for manufacturing a circuit for quantum computers is successful 80% of the time. Researchers want to calculate the probability that more than 15 of the next 20 attempts to make the circuit will be successful. Can they use the normal approximation to the binomial? Why or why not?

Brennan Flores 2021-09-23

a) Explain the reason to use binomial formula instead of using normal approximation to obtain the required probability.
b) Explain the reason for the authors of the study can propose that someone who scores 42 or less on the MENT exam is faking the test.

Maiclubk 2021-09-23

Let x be a discrete random variable that possesses a binomial distribution. Using the binomial formula, find the following probability.
$P (x = 3) f or n = 4 and p = 0.3$
Round your answer to four decimal places.
$P (x = 3) = ?$

Josalynn 2021-09-23

Find the probability of X successes in table B of appendix A.
$n = 12, p = 0.90, x = 2$
I believe they are using the the binomial probability formula and im not sure how to start if you can give a step by step anwser explanation that would be helpful.

BenoguigoliB 2021-09-23

An oil company conducts a geologival survey that indicates an exploratory oil well should have a 23% change of striking oil.
A. What is the probability that the 2nd strike will occur on the 5th attempt?
B. What is the probability that the 7th strike will occur on the 12th attempt?
C. What is the probability that the 11th strike will occur between the 15th and 18th attempt?

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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