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Recent questions in Binomial probability

Cheyanne Leigh 2021-09-28

Compute P(X) using the binomial probability formula. Then determine whether the normal distriution can be used to estimate this probability. If so, approximate P(X) using the normal distriution and compare the result with exact probability.
$n = 47, p = 0.6$ , and $X = 34$
For $n = 47, p = 0.6$ , and $X = 34$ , use the binomial probability formula to find P(X).
(Round to four decimal plases as needed.)
Can be normal distriution be used to approximate this probability?
A. Yes, because $\sqrt{n p (1 - p)} \geq 10$
B. No, because $\sqrt{n p (1 - p)} \leq 10$
C. No, because $n p (1 - p) \leq 10$
D. Yes, because $n p (1 - p) \geq 10$

sanuluy 2021-09-28

Consider a binominal experiment with 2 trials and $p = 0.4$
a. Compute the probability of 1 success f(1)
b. Compute f(0)
c. Compute f(2)

ankarskogC 2021-09-27

I have a large jar of red and green M&M’s with 55% red M&M’s. I plan to pick 7 M&M’s.
1. I want to find the probability that I get 2 red M&M’s out of 7.
a) How many different ways can you get 2 red M&Ms out of 7? Use the formula for the binomial coefficient to find that number.
b) Use your answer from (d) and the binomial formula to calculate the probability that you get 2 red M&M’s out of 7.
c) Use your calculator to find the probability that I get 3 red candies out of the 7 picked

Jerold 2021-09-27

If a seed is planted, it has a 90% chance of growing into a healthy plant.
If 7 seeds are planted, what is the probability that exactly 2 don't grow?

Efan Halliday 2021-09-27

A fair quarters flipped three times. For each of the following probabilities, use the formula for the binomial distribution and a calculator to compute the requested probability. Next, look up the probability in the binomial probability distribution table. (Enter your answers to three decimal places.)
(b) Find the probability of getting exactly two heads.
(c) Find the probability of getting two or more heads.

Rui Baldwin 2021-09-27

75% of all bald eagles survive their first year of life. Give your answers as decimals, not percents. If 30 bald eagles are randomly selected, find the probability that.
Between 20 and 26 (including 20 and 26) of them survive their first year of life.

Kye 2021-09-27

To obtain: The probability that the claim will be accepted.
Given info:
The sample size is $n = 100$ and the drug manufacturer claims that a drug cures a rare skin disease is 65% of the time.

beljuA 2021-09-27

To obtain: The probability that at most 80 drivers will say yes.
Given info:
The number of drivers selected in the United States is 200 and the drivers said yes for the given question is 0.47.

Burhan Hopper 2021-09-27

On a 8 question multiple-choice test, where each question has 2 answers, what would be the probability of getting at least one question wrong?
Give your answer as a fraction

Carol Gates 2021-09-27

In binomial probability distribution, the dependents of standard deviations must includes.
a) all of above
b) probability of q
c) probability of p
d) trials

slaggingV 2021-09-27

According to a study by the Bureau of Justice Statistics, approximately 5% of the nations

ddaeeric 2021-09-27

Give the numerical value of the parameter n in the following binomial distribution scenario.
The probability of buying a movie ticket with a popcorn coupon is 0.597 and without a popcorn coupon is 0.403. If you buy 18 movie tickets, we want to know the probability that no more than 13 of the tickets have popcorn coupons.
Consider tickets with popcorn coupons as successes in the binomial distribution. Do not include $n =$ in your answer. Provide your answer below:

boitshupoO 2021-09-27

Harry Ohme is in change of the electronics section of a large store. He has noticed that the probability that a customer who is just browsing will buy something is 0.3. Suppose that 15 customers browse in the electronics section each hour. What is the probability that no browsing customers will buy anithing during a specified hour?

geduiwelh 2021-09-27

A binomial probability distribution has $p = .20 and n = 100$ .
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?

Nann 2021-09-26

a) To find the probability of winning at least one prize if you purchase 10 tickets.
b) To find the probability of winning at least one prize if you purchase 15 tickets.

Chardonnay Felix 2021-09-26

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 12 adult smartphone users are randomly selected, find the probability that fewer than 3 of them use their smartphones in meetings or classes.

Daniaal Sanchez 2021-09-26

Find the value of $P (X = 8)$ if X is a binomial random variable with $n = 12$ and $p = 0.75$

Dillard 2021-09-26

If you toss a fair coin 11 times, what is the probability of getting all heads? Express the probability as a simplified fraction.
A) $\frac{1}{4096}$
B) $\frac{1}{2048}$
C) $\frac{1}{2}$
D) $\frac{1}{1024}$

mattgondek4 2021-09-26

On each of three consecutive days the National Weather Service announces that there is a 50-50 chance of rain. Assuming that the National Weather Service is correct, what is the probability that it rains on at most one of the three days? Justify your answer. (Hint: Represent the outcome that it rains on day 1 and doesn’t rain on days 2 and 3 as RNN.)

sagnuhh 2021-09-26

The probability of x success, given $n = 12, p = 0.35, x = 4$
The probability of x success, given $n = 17, p = 0.60, x = 9$

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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