What is the probability of getting at least one tail if two unbiased coins are independently tossed? а. 1/4 b. 1/2 с. 7/8 d. 3/4

Q: A university knows from historical data that 25% of students in an introductory statistics class…

A: From the provided information, A university knows from historical data that 25% of students in an…

Q: 4.3#2. An article suggests that substrate concentration (mg/cm3) of influent to a reactor is…

A: Given Data Population Mean,μ = 0.7 Population Standard Deviation,σ = 0.08

Q: In a bag of M & M's, there are 80 M & Ms, with 12 red ones, 13 orange ones, 19 blue ones, 12 green…

A:

Q: An unfair coin with​ Pr[H] =0.250 is flipped. If the flip results in a​ head, a student is selected…

A: We are given,Probability of Head = 0.250If flip results in a head , then student is selected at…

Q: which of the following gives the probability that the random variable X > 2?

A: here given cumulative probability density function

Q: D.) A loaded coin was made so that the probability of the head turning out was twice more likely…

A:

Q: An unfair coin with Pr[H]=0.6 is flipped. If the flip results in a head, a marble is selected at…

A: The event H is defined as flip results a head, R is defined as red marble, and T is defined as tail.…

Q: Suppose that the number of miles, X, until replacement is needed for a particular type of electric…

A:

Q: A package of parts contains 10 parts from supplier I and 20 parts from a supplier II. If tour parts…

A: A package of parts contains 10 parts from supplier I and 20 parts from a supplier II. If four parts…

Q: In a certain state, it has been shown that only 62% of the high school graduates who are capable of…

A: Let us denote X=the number of high school graduates who are capable of college work actually enroll…

Q: Suppose that a LED bulb has a defective rate of 0.0004. What is probability that four bulbs need to…

A:

Q: (a) If an FEV of less than 2.5 L is regarded as showing some functional impairment (occasional…

A: Given: Non-smoking man: Mean μ=4.1 Standard deviation σ=0.5   Smoking man: Mean μ=3.9 Standard…

Q: A fair coin is tossed three times. What is the probability of getting a) exactly two heads (b) at…

A:

Q: For number 5: Based on a hamster breeder's experience, the number of live pups in a litter of a…

A: Given prob. distribution is X=x 3 4 5 6 7 8 9 P(X=x) 0.04 0.10   0.31 0.22 0.05 0.02

Q: Suppose two cards are drawn from a standard deck of 52 cards without replacing the first one before…

A: Solution Dear student as per guidelines we answer the first question only.

Q: Suppose that a fast food restaurant can expect two customers every 3 minutes, on average. What is…

A: Using poisson distribution Find p( x<=4)=?

Q: A crime study for a geographic area showed an average of one home invasion per 40,000 homes. If an…

A: Let X be the random variable from Poisson distribution with (λ) = 60000*(1/40000) = 1.5 Then,  We…

Q: Suppose that the average number of cars abandoned weekly on a certain highway is 2.5. Find the…

A:

Q: Consider the type of clothes dryer (gas or el (a) If the probability that at most one of t

A: GIven, a) P(at most one of these customers purchases an electric dryer)  = P(x≤1)  = 0.423 P( at…

Q: Suppose that the proportions of blood phenotypes in a particular population are as follows: A B АВ…

A: We have given that,  The proportions of blood phenotypes in a particular population are as follows:-…

Q: 2. A manufacturing process that produces electron tubes is known to have a 10% defective rate.…

A: (a)   Obtain the probability that no more than two defectives are found.   The probability that no…

Q: It is known that the defect rate of an iPhone 3%. What is the probability that a batch of 100…

A: Has to find P( no defective ) = ? what is A intersection S

Q: 3. The Philippine Institute of Volcanology and Seismology (PHIVOLCS) records an average of 20…

A: Solution

Q: You flip an unfair coin with Pr[H] =.2 three times. Find the expected number of heads flipped.

A: Probability of head appear is 0.2.

Q: a. Given a random sample of 70 resistors, what is the probability that its mean is between 218 N and…

A: HERE GIVEN, mean = 220 standard deviation = 11   here use central limit theorem

Q: A weighted coin with Pr[H]= 0.3 is flipped 3 times. What is the probability the first and third…

A:

Q: f jellybeans are not associated with acne and you adopt an alpha of 5%: What is the probability of…

A: Given that  If jellybeans are not associated with acne and you adopt an alpha of 5% Level of…

Q: 3. 0.03 of the goods produced in a factory are defective. When a 25 unit sample is drawn for…

A: P(defective)=0.03=P q=1-P=0.97 n=25 x= no. of defective goods, p(x=X)=nc x px qn-x    - binomial…

Q: 8) 30% of pupils in a school travel to school by bus. From a sample of ten pupils chosen at random,…

A: We have to find the probability for binomial distribution.

Q: Assuming that P(green) = 0.75, what is the probability that among his 580 plants that the number of…

A: Given that , P(green) = 0.75  Total number of plants = 580  Let, X be the number of pees with green…

Q: After rolling a fair, six-sided die 100 times, it was observed that the probability of rolling a 2…

A: We know, that on rolling a fair dice, the probability of obtaining 2 on a dice roll is 0.167

Q: Suppose a coin with Pr[H]=3/4 is flipped 4 times. Answer the following questions: What is the…

A: Consider,P(H) = ¾,P(T) = ¼N = 4 (four times coin flipped)Thus,

Q: Suppose that at UCLA, 35% of students are international students. What is the probability that 40…

A: Solution-: Given: n=100,p=0.35 (35%) We find, P[X=40]=?

Q: From past experience, a company has found that in a carton of transistors, 92% contain no defective…

A: x p(x) 0 0.92   1 0.03   2 0.03   3 0.02

Q: a) Defective rate in a production has been found to be 15%. What is the probability that there are 2…

A:

Q: 15. A statistics teacher announces to the class at the beginning of the semester that there is a 40%…

A: 15. Two events are said to be mutually exclusive if they cannot occur at the same time. For two…

Q: Part B Assume that in a 6-day weeklong trip during the month of February at a ski resort, the…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer  first…

Q: If 25% of the parts produced by a machine are defective (p = 0.25), 5 from the track; a) What are…

A:

Q: Suppose there is a 14.1% probability that a randomly selected person aged 30 years or older is a…

A:

Q: What is the probability that at least 4 of the selected adults believe in​reincarnation?

A:

Q: An unfair coin with​ Pr[H] =0.4 is flipped. If the flip results in a​ head, a marble is selected at…

A: Let us denote R=Red and B=blue  If head comes, then a marble is selected at random from an urn…

Q: A group of people were asked if they had run a red light in the last year. 470 responded "yes", and…

A: Given that,  Response, Yes = 470 Response, No= 283 Total responses = Yes+No = 470+283 n= 753

Q: On the question of whether marijuana should be decriminalized, suppose the probability that a person…

A: The probability that a person favors decriminalization is 0.4, that a person opposes it is 0.5, and…

Q: Based on a​ poll, 40% of adults believe in reincarnation. Assume that 5 adults are randomly​…

A: Let us denote X= number of adults who believe in reincarnation.  Probability of a person who…

Q: Determine the probability that a randomly selected candidate had:   a) Either work experience or a…

A: Note : Since you have asked multiple questions, we will solve the first question for you. If you…

Q: A weighted coin with Pr[H]=0.4 is flipped 3 times. What is the probability the first and third flips…

A:

Q: Based on a​ poll, 40​% of adults believe in reincarnation. Assume that 4 adults are randomly​…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: Q14. Based on question 13, What is the probability that the selected person has an * ?iPhone

A: Q14. There are totally 50 people in a conference out of which there are 25 men and 25 women. Also…

Q: When treated with anabiotic 92% of all the Dolphins are cured of an ear infection. If six Dolphins…

A: