Mathematics OpenStudy (anonymous):

@jim_thompson5910 can U help me with a couple probability questions OpenStudy (anonymous):

okay here is the first one OpenStudy (anonymous):

okay here is the first one ???? OpenStudy (anonymous):

Approximately 3% of peanuts in a certain shipment are spoiled. If you randomly select 24 peanuts, what is the probability that exactly two are spoiled? OpenStudy (anonymous):

okay how abt this question: If a 6-sided die is rolled 8 times, what is the probability of getting exactly one 6? Give your answer to the nearest thousandth. OpenStudy (anonymous):

@Mertsj can u help me? OpenStudy (mertsj):

Wouldn't it be 1- probability of getting a "non-6"? OpenStudy (anonymous):

you can do it with binomial, have you done binomial? OpenStudy (anonymous):

yes but i need help OpenStudy (anonymous):

n=8, p= 1/6 OpenStudy (mertsj):

So I think it would be 1-(5/6)^8 OpenStudy (anonymous):

in this case you dont actually need it as its relatively simple to count the options the possible outcomes, with "6" being a 6 and "N" being not a 6 : NNNNNNN6 NNNNNN6N NNNNN6NN NNNN6NNN NNN6NNNN NN6NNNNN N6NNNNNN 6NNNNNNN so we have 8 possibilities each with (1/6)*((5/6)^7) probability so 8* (1/6)*((5/6)^7) alternatively using binomial p = 1/6 , n = 8 , x = 1 \[P(X=x) = C(p^x(1-p)^{n-x})\] where C is "n choose x" so we have P(X=1) = 8((1/6)((5/6)^7)) OpenStudy (anonymous):

@Mertsj i think that would be " probability that there is at least one 6" OpenStudy (anonymous):

so 0.372 OpenStudy (anonymous):

yes :) OpenStudy (mertsj):

Yes, you are correct, eigneschmeigen. I never was any good at probability. OpenStudy (anonymous):

can u help em with one more: 1.Two coins are tossed 20 times and the number of times that both of the coins land tails is recorded. 2. In a light-bulb manufacturing plant, the probability of a bulb being defective is 0.2%. A sample of 100 bulbs is chosen at random and the number of defective bulbs recorded. 3. A card is drawn from a well-shuffled standard deck of cards and the suit is recorded. This is repeated 10 times and the cards are not replaced after each draw. 4. A 10-question multiple-choice test has 4 possible answers for each question. A student guesses the first 9 answers randomly but is certain of the answer to the tenth question. The number of correct answers is recorded. 5. A basketball player makes 85% of her free throws. In a particular game she has 10 free throws. The number of free throws that she makes is recorded. OpenStudy (anonymous):

which is a binomial distribution OpenStudy (anonymous):

probability is tricky, always used to catch me out, one of my exams include probability recently so i'm a bit warmed up on it OpenStudy (anonymous): OpenStudy (anonymous):

no, i like in england. i have a few canadian friends though conditions for X ~ B(n,p) 1: The number of observations n is fixed. 2: Each observation is independent. 3: Each observation represents one of two outcomes ("success" or "failure"). 4: The probability of "success" p is the same for each outcome. OpenStudy (anonymous):

so 1,2,and 5 OpenStudy (anonymous):

yeah i think so

Latest Questions ghala: the graph shows the total cost of goldfish at the aquarium shop use a table to fi
33 minutes ago 1 Reply 0 Medals Monica82: Two planes are 1500 mi apart and are traveling towards each other one plane is tr
32 minutes ago 1 Reply 0 Medals JeliseWh05: I speak without a mouth and hear without ears. I have no body, but I come alive with wind.
23 minutes ago 4 Replies 0 Medals Ashley29: Have you ever been so sad that is physically hurts inside?
5 hours ago 0 Replies 0 Medals magicmyaa00: "Now I want you clearly to understand that this lever, being pressed over, sends the machine gliding into the future, and this other reverses the motion.
6 hours ago 0 Replies 0 Medals sanjlop89: ABCDEFGHIJ is a regular decagon. It rotates clockwise about its center to form the polygon Au2032Bu2032Cu2032Du2032Eu2032Fu2032Gu2032Hu2032Iu2032Ju2032.
20 minutes ago 1 Reply 0 Medals Tyrion: Pyramid A is a square pyramid with a base side length of 7 inches and a height of 6 inches.
7 hours ago 6 Replies 0 Medals JeliseWh05: What are the main similarities and differences between fascism and communism?
7 hours ago 2 Replies 0 Medals JeliseWh05: What are the main similarities and differences between fascism and communism?
10 hours ago 0 Replies 0 Medals emilybethch: Identify the layers of the Sun's interior based on the brief descriptions provided.
10 hours ago 1 Reply 0 Medals