A cubic foot of soil contains on average one grain of thorium. What is the probability that a cubic yard of soil contains between 25 and 30 grains of thorium (inclusive)? Hint: 1 yd = 3 ft.

Q: A study found that the national college graduation rate was​ 72%. Estimate the probability that the…

A: The known values are, n = 220, p = 0.72 The mean of the sampling distribution of sampling proportion…

Q: The z value, such that the probability of obtaining a lower z value is 0.025, is ?. The z value,…

A: Let X be the required value a) To find: X Probability of obtaining a lower z…

Q: In a poll,  480 out of 1623 people said that they prefer chocolate ice cream to vanilla.   (a) What…

A: From the given information, out of 1,623 persons 480 were responded that they prefer chocolate ice…

Q: What is the probability that it will take a mechanic less than 6 minutes to change the oil? Your…

A: Given : population mean , u = 5

Q: The cashier line of a canteen can facilitate up to 60 customers an hour. Frequenters of the canteen…

A: As per Bartleby  guidelines I can't answer more than three sub parts per post. Please post other…

Q: b. What is the probability that someone in Country A consumed between 3 and 5 gallons of soft drinks…

A:

Q: The production operation of a mineral water company fills the bottles uniformly between 490 ml and…

A:

Q: What is the probability that a person likes to watch football, given that she also likes to watch…

A: Football No Football Total Basketball 31 18 49 No Basketball 33 18 51 Total 64 36 100

Q: The table summarizes results from pedestrian deaths that were caused by automobile accidents.…

A: Obtain the probability that they both involved pedestrians that were intoxicated.   The probability…

Q: (c) What is the probability that none of the five have written an editorial letter while under the…

A: Given that  n=5 , p=32%=0.32 , q=1-p=1-0.32=0.68 X~Binomial(n=5,p=0.32) X=Number of written an…

Q: a) What is the probability that a single car of this model emits more than 86 mg/mi of NOX + NMOG? )…

A: a.) Let X be the random variable representing the emission of NOX+ NMOG by a single car. Here, X~…

Q: The probability that an individual is left-handed is 0.170. In a class of 50 students, what is the…

A:

Q: A fair die is rolled 6 times. What is the probability of having no 3 and no 4 among the rolls? Round…

A: It is given that a fair die is rolled 6 times, then we will get sample space as S=…

Q: What is the probability that a randomly selected graduate has a job if he or she is attending…

A: It is given that The two events are defined as C : a graduate is attending  college. J : a graduate…

Q: The number of telephone calls coming into Grace Floral Shop to place orders averages 3 per minute.…

A:

Q: What is the probability that a person likes to watch football, given that she also likes to watch…

A: From the provided information,   Football No Football Total Basketball 24 11 35…

Q: What is the probability that out of 175 chicks hatched on Peeper Farm, at least 80 will be female?…

A:

Q: The probability of getting a reading between 1.50°C and 2.25°C is (Round to four decimal places as…

A: The probability of getting a reading between 1.50°C and 2.25°C is,…

Q: Between the values 50 kg to 70 kg, what is the probability that a man's weight is exactly 60 kg?

A: Our aim is to find the probability that a man's weight is exactly 60 kg.

Q: Determine the theoretical probability of rolling a total of less than or equal to 6 or rolling…

A: If two dice are rolled, then the sample space is, S={1,1,1,2,1,3,1,4,1,5,1,6,…

Q: A sociologist claims the probability that a person picked at random in Times Square in New York City…

A: Hypothetical population: The set of all people, items, or objects that are required for a specific…

Q: Ques ton 7 Ass umming factory faltoryemployng g00 iworkers s there wl the at least 2 fatal accrden…

A: Given that  n=300 , p=1/1200 , q=1199/1200 X~Binomial(n=300,p=1/1200)

Q: g. What is the probability that the useful life of a laser exceeds five years?

A:

Q: If an individual is selected, find the probability that the individual's pressure will be between…

A: Let X be the individual's systolic blood pressure which follows normal distribution with mean 120…

Q: b. What percent of the discharges are between 7.6 ounces and 8.1 ounces? e. If customer buys a cup…

A: Given, Let  X be the percentage of discharge Average =μ=8Standard Deviation =σ=0.2X~N(μ,σ2)

Q: b. What is the probability that a shopper will use a smart phone to save money? The probability is…

A: Let the events be: A: use online coupons B: check prices online before shopping C: use a smart phone…

Q: The probability of finding between a and b percent iron (in decimal form) in ore samples is modeled…

A: Given data: The given expression for the probability is Pa≤x≤b=∫ab2x3ex2dx. The given limit of a and…

Q: It has been found from experience that an exclusive clothes shop makes anaverage of four sales every…

A: Given that an exclusive clothes shop makes an average of four sales every fifteen minutes. If we…

Q: A particular game is played with balls thrown against a wall as shown below. The balls need to land…

A:

Q: It has been found from experience that an average of four customers use the drive- through…

A: Given: We have to find out answer of given question..

Q: The width of a slot of a duralumin forging is( in inches) normally distributed with µ=0.85 and o=…

A: Given information: The width of a duralumin forging is normally distributed with: Population mean,…

Q: given by Tollowing table: X=length 129 130 131 Y=width 15 0.12 0.42 0.06 16 0.08 0.28 0.04 The…

A: Given Data : Now, it is provided that the width = 16

Q: (d) What is the probability that at least one has danced in public while under the influence of…

A:

Q: A particular game is played with balls thrown against a wall as shown below. The balls need to land…

A: First, we have to find the area of both green and grey rectangles. We know that area of a rectangle…

Q: 15-minute break, that is, calculate P (T> 0.25). Question: What is the probability that this…

A: Here use exponential distribution for solving both parts

Q: selected, what is he probability that the average sugar content is less than 37 grams?

A: Here distribution with Mean = 39 Standard deviation = 15 Now sample of 40 bottles are taken from…

Q: Find the indicated probability: P(A) = 0.50  P(B) = 0.30   P(A U B) = 0.84 P(A ∩ B) = ? answer…

A: Given,P(A) = 0.50P(B) = 0.30    P(A U B) = 0.84

Q: The probability the container will be shipped is (Round to the nearest thousandth as needed.)

A: Solution

Q: You randomly shoot a dart onto a 2ft x 3ft size rectangular board. Assume that you never shoot…

A: It would be a favorable outcome if the dart is at least 0.6ft away from the closest edge. So we can…

Q: The probability that the selected subject is someone 60 and over who responded is (Round to three…

A: Given:   Age     18-21 22-29 30-39 40-49 50-59 60 and over Responded 72 254 244 135 137 201…

Q: A particular game is played with balls thrown against a wall as shown below. The balls need to land…

A: We have to find out

Q: In a Police control room there are on an average 3 calls per 10 minute interval. The probability of…

A: The formula of Poisson is:

Q: b. What is the probability of finishing within 43 minutes? |Type an integer or decimal rounded to…

A:

Q: You have just stepped into the tub to take a shower when one of your contact lenses falls out. (You…

A:

Q: At a store, the average number of customers entering is 25 persons per half an hour. What is the…

A:

Q: When a standard die is rolled, find the probability of getting a) A 5 b) A number larger than 2 c)…

A:

Q: a. If a pilot is randomly selected, find the probability that his weight is between 130 lb and 191…

A:

Q: What is the probability of flipping a coin 15 times and getting heads 7 times? Round your answer to…

A: Given that  Number of trials n=15 Success of probability p =0.5 X~binomial (n,p)