Suppose it takes a child between 4.5 and 12 minutes to eat an ice cream cone. Let X= the time, in minutes, it takes a child to eat an ice cream cone. Find the probability that a randomly selected child eats an ice cream cone in at least 7 minutes.

Q: A piece of wire 6 in. long is cut into two pieces at a random point. Whatis the probability that…

A: To find: The probability that both pieces of wire will be at least 1 inch long. Given: The length of…

Q: z-score will be between 0.7 and 1.4

A: Z-Score: It is a numerical measurement that describes a value's relationship to the mean of a group…

Q: A survey finds customers are charged incorrectly for 1 out of every 10 items. Suppose a customer…

A: Binomial distribution is given by

Q: The probability that a bomber hits its target on any particular run is .80. If three bombers are…

A:

Q: Suppose that voters arrive at a polling station at the rate of 120 per hour. Find the probability…

A: Given: The probability having 200 voters that will arrive within two hours of each other.  Hence,…

Q: Let X be the number of times '4' is rolled out of a total of 8 rolls.  What is the probability that…

A:

Q: In a large population, 57 % of the people have been vaccinated. If 5 people are randomly selected,…

A: We have given that  Sample size n= 5 Success of probability p=57%=0.57 X~binomial ( n ,p)

Q: The probability that a glove will not crack in a smasso test is 0.70. What is the probability that…

A: The probability that a glove will not crack in a smasso test is 0.70. What is the probability that…

Q: . A nationwide survey of college seniors by the University of Michigan revealed that almost 70%…

A: Given that n =12,p=0.7 a. find the p( 7<=x<9) =? b. find the p(x<=5) =? c. find the p(…

Q: The probability of John scoring hitting a home run in a baseball game is .40. a. Consider John…

A: Given information: It is given that a John has played the baseball game for 5 times. That is, n =5.…

Q: The probability that a person buys a car from a particular dealership after a test-drive is 25%.…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Q: A recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A:

Q: Find the probability for the experiment of tossing a six-sided die twice. The sum is at least 11.

A: Given: An experiment of tossing a six-sided die twice.

Q: The weekly average number of airplane crashes is 1. Whatis the probability that there will be (a) at…

A: Given Data: Let X be the random variable representing weekly average number of airplane crashes X ~…

Q: d. For the 35 people, find the probability that the average age that they learned to walk is between…

A: here given ,  Suppose the age that children learn to walk is normally distributed with mean 11…

Q: From a standard deck of playing cards you are dealt 3 cards. If X is the number of diamonds that was…

A:

Q: A production line estimates that 1.50% of the items it produce is defective. In a package containing…

A:

Q: The probability that a person living in a certain city owns a dog is estimated to be 0.4. Find the…

A: Let us consider the interview of a person is a trial and suppose that the trail is success if it is…

Q: A fair die is rolled six times. What is the probability that it comes up 2 at least once

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

Q: Find the probability that over a period of one year, a family runs their vacuum cleaner between 60…

A: here given , continuous random variable has density function  x            0 <x<12-x…

Q: The probability that a police officer is hiding behind a billboard next to the highway is 0.06. The…

A: Conditional probability:   Let A and B be two events, then the condition probability for event A,…

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

A: Given that : The policeman with a radar gun is watching traffic pass on a street where it is the…

Q: Assume, the record shows that annual rainfall in a certain catch basin follows N(60, 15) (inches)…

A: According to the provided information, the annual rainfall in a certain catch basin follows N(60,…

Q: During a Kansas tornado season, the probability a local grocery store experiences power outage on…

A: (d) On at least one day: P(At least 1 day)= 1- P(None of days) --(1) So 1st we need to find P(None…

Q: Find the probability that a telephone call selected at random will last a. between 1 minute and 2…

A:

Q: The owner of a car wash shop noticed that on normal days there are 4 cars that enter the shop at one…

A:

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

A:

Q: Select the correct interpretation of the probability of guessing the date of his birth, given that…

A:

Q: an observer counts 36O vehicles per hour at a highway. estimate the probability of having more than…

A: A observer count 360 vehicle per hour at a highway.

Q: The experimental probability that Morgan will randomly select a penny from a bag of coins is 19100.…

A: Given that

Q: In a recent year, there were 2,515,458 deaths, and 787,650 of them were due to cardiovascular…

A: Total number of deaths = 2515458Number of deaths due to cardiovascular disease = 787650…

Q: In an elevator it limits the weight of its four occupants to 300 kg. If an individual's weight…

A: Let  Xi: Individual weight . From given information, each Xi~N(μ=71,σ2=7)  i.e  each Xi have…

Q: For X~Normal(100,10), what would be the probability that x is less than 90?

A: Given: X~N (100,10) Mean(μ)  = 100 Standard deviation (σ) =10

Q: The probability that a person living in a certain city owns a dog is estimated to be 0.5. Find the…

A:

Q: Find the probability that an investor makes a profit on 6 of her next 12 investments, assuming…

A:

Q: for a publisher of technical books, the probability that any page contains at least one error is p =…

A: Given that  n=1000 , p=0.005

Q: The probability that a person living in a certain city owns a dog is estimated to be 0.3. Find the…

A: Let p be the probability a person owns a dog. Given that p = 0.30 Let X denote the trial number on…

Q: a. The mean of the population is 0.29. In what range will the middle 95% e sample results fall? b.…

A: 95% of data lies within two standard deviations away from the mean. The values are Values = [u - 2s,…

Q: Find the probability for the experiment of tossing a six-sided die twice. The sum is at least 10.

A: Find the probability for the experiment of tossing a six-sided die twice. The sum is at least 10.

Q: The probability of a man hitting a target is How many times must he fire so that the probability of…

A: Let , X be the number of fires to hit the target. Here , X→B(n , p=1/4) The probability mass…

Q: Find the probability of getting a number less than 5 in a single throw of a die.

A: Solution: 1. Suppose a die is thrown. Then, the sample space is

Q: In a factory, there were 12 accidents involving machinery in the last six months.  (d) Calculate…

A: Given, In a factory, there were 12 accidents in the last 6 months => 12/6 = 2 accidents per month…

Q: What is the probability that Z is less than −0.28 or greater than 1.04​?

A: We have to find , Probability that Z is less than -0.28 or  Probability that Z is greater than 1.04…

Q: The time taken by brake discs to overheat on construction equipment is normally distributed with…

A: Answer - The time taken by brake discs to overheat on construction equipment is…

Q: Suppose that a policeman with a radar gun is watching traffic pass on a street where it is the case…

A: Instruction : Use the website www.stattrek.org to calculate probability.    A policeman with a radar…

Q: Suppose it has been determined that the probability is 0.8 that a rat injected with cancerous cells…

A: Suppose it has been determined that the probability that a rat injected with cancerous cells will…

Q: Suppose that the probability that your mail is delivered before 2 pm is .90. What is the probability…

A: We have given that the probability that mail is delivered before 2 pm is 0.90.

Q: The flight from Greenville to Charlotte can take anywhere from 43 minutes to 68 minutes.  Suppose…

A:

Q: Suppose that the average time a fully charged 6-volt laptop battery will operate a computer is 3.5…

A: Given information- Average time = 3.5 hours Since it is given that average time a fully charged…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.