The probability is 0.3 that a traffic fatality involves an intoxicated or alcohol-impaired driver or nonoccupant, In eight traffic fatalities, find the probability that the number, Y, which involve an intoxicated or alcohol-impaired driver or nonoccupant is a. exactly three; at least three; b. between two and four, inclusive. c. Find and interpret the mean of the random variable Y. d. Obtain the standard deviation of Y most three.

Q: The probability that a person catches a cold during the cold and flu season is 0.4. Assume that 10…

A: According to the given information, we have Probability, p = 0.4 Sample size, n = 10

Q: the local college is included the mike run in a fitness test for seniors. suppose the time for this…

A: Given Information: Mean μ=469 seconds Standard deviation σ=50 seconds To find the probability that a…

Q: in a certain region, the mean annual salary for electricians is $58,650. Let x be a random variable…

A: GivenMean(μ)=58650standard deviation(s)=1890sample size(n)=40

Q: Given a normal population whose mean is 665 and whose standard deviation is 24, find each of the…

A: The following information has been given: The population mean is μ=665. The population standard…

Q: The profits of a mobile company are normally distributed with Mean of 200 and standard deviation of…

A: From the provided information, Mean (µ) = 200 Standard deviation (σ) = 20 Let X be a random variable…

Q: The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 365…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: In a math test the scores of a class of students follow approximately the normal distribution with a…

A: Let X=the math test scores Given that X follows a normal distribution with mean=75 and standard…

Q: Exercise 1: The weight of a random scone sold by your favorite bakery has a mean of 105g I a…

A: Given: μ = 105 σ = 5 Formula Used: Z-score= X-μσn

Q: hotel in a European city follows a normal distribution with a mean of 170 euros and a standard…

A:

Q: The mean monthly household electric bill in a certain community is $110. Assume the amounts are…

A: Suppose the random variable x defines the monthly household electric bill in a certain community.

Q: The weight of a small Starbucks coffee is a normally distributed random variable with the a mean of…

A: From the given information we find the solution for given problem.

Q: The average number of moves a person makes in his or her lifetime is 12. If the standard deviation…

A: From the provided information, Mean (µ) = 12 Standard deviation (σ) = 3.2 Sample size (n) = 36 a)…

Q: The weekly demand for Baked Lay’s potato chips at a certain Subway sandwich shop is a random…

A: Here the given information is        The weekly demand for Baked Lay’s potato chips at a certain…

Q: The average American man consumes 9.8 grams of sodium each day. Suppose that the sodium consumption…

A: From the provided information, Mean (µ) = 9.8 grams Standard deviation (σ) = 1 grams

Q: The distance travelled to work by the employees of PUP may be modelled by a normal distribution with…

A: Answer:- Given the distance traveled to work by the employees of PUP may be modeled by a normal…

Q: Service time for a customer coming through a checkout counter in a retail store is a random variable…

A: GivenMean(μ1)=4.0Mean(μ2)=4.0standard deviation(σ1)=2.5standard deviation(σ2)=2.5sample…

Q: An amusement park ride has a bench seat designed for two passengers in each row. In this scenario,…

A:

Q: If z is a standard normal variable, find the probability. The probability that z lies between -1.10…

A: We have to find the probability. The probability that z lies between -1.10 and -0.36.

Q: The length of a fully grown hibiscus plants is normally distributed and has a mean of 35cm and a…

A: Given that,Mean(μ)=35standard deviation(σ)=4     The random variable  is length of fully grown…

Q: b. Find the probability that this American man consumes between 10.8 and 12.2 grams of sodium per…

A: Solution: It is given that the mean and standard deviation is:

Q: A normal population has a mean of 63 and a standard deviation of 14. You select a random sample of…

A:

Q: The final exam scores in a statistics class were normally distributed with a mean of 63 and a…

A:

Q: The average time a person spends at the Barefoot Landing Seaquarium is 94 minutes. The standard…

A: We have given that.   X~N( μ , ?^2 )   μ=94 , ?=18   Z-score =( x - μ )/?

Q: The length of time it takes a college student to find a parking spot in the library parking lot…

A: Mean(μ)=7.0 standard deviation(σ)=1

Q: The probability is 0.3 that a traffic fatality involves an intoxicated or​ alcohol-impaired driver…

A: Probability, Sample size,

Q: 80% of beans seeds sprout. Three seeds were planted. Find the distribution of the variable X number…

A: Given : n = 3 P = 0.80 q = 1 - p     = 1 - 0.80 = 0.20

Q: The average hourly wage of employees of a certain company is $11.88. Assume the variable is normally…

A: The mean of the distribution is .The standard deviation of the distribution is .The population is…

Q: Suppose that the speed at which cars go on the freeway is normally distributed with mean 76 mph and…

A: Mean(μ)=76 standard deviation(σ)=5

Q: Let x be a ramdom variable that represents the IQ score of an adult. Then x has a normal…

A: The mean of the data is 100. The standard deviation of the data is 25.

Q: Let X be the number of successes in a fixed number of repeated trials and let p be the probability…

A: Let X be the number of successes in a fixed number of repeated trials and let p be the probability…

Q: iven a normal population whose mean is 580 and whose standard deviation is 77, find each of the…

A: Given that μ=580,σ=77

Q: The lengths of pregnancies are normally distributed with a mean of 266days and a standard deviation…

A:

Q: The cost of personal computers (PCs) follows an approximately Normal distribution with a mean of…

A: Given,mean(μ)=$435standard deviation(σ)=$51Let C = the cost of a PC.

Q: Given a normal population whose mean is 350 and whose standard deviation is 47, find each of the…

A: Let us denote the variable by X.  Given that X follows a normal distribution with mean= 350 and…

Q: A fair coin is tossed three times (consecutively). If X is the number of heads of the first shot and…

A: It is an important part of statistics . It is widely used .

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: Given Information: Mean μ=196 Standard deviation σ=22 Let X denote the number of red meat a person…

Q: uppose that the heights of female adults in the United States are normally distributed with a mean…

A: Solution-: Given: μ=65.4inches,σ=2.8inches We obtained the following: (a) P(X is between 66 and 70…

Q: A study indicates that 18- to 24- year olds spend a mean of 120 minutes watching video on their…

A: The mean is 120 minutes and the standard deviation is 20 minutes.

Q: A sniper hits a target 80% of the time. He fires five shots at the target. Find  A. Probability…

A: Given problem is binomial distribution Let X: No. of hits n=No. of shots at the target=5 p=prob. of…

Q: sheet metal manufacturer is making 10-gauge eet metal, which is supposed to be 3.416 mm ick. One of…

A: Solution: Given information: n= 100 Sample size  μ=3.416 mm Population mean

Q: The distance travelled to work by the employees of PUP may be modelled by a normal distribution with…

A:

Q: The average American man consumes 9.9 grams of sodium each day. Suppose that the sodium consumption…

A: The mean is 9.9 grams of sodium each day and the standard deviation is 0.9 grams.