If one Person is selected at random from the sample of 157, 330 Americans find a probability that this person

Q: Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes.…

A: Let x follows binomial distribution with parameters n = 2 and p = 0.54   The pdf of binomial…

Q: Last year, 1,460 calculators were returned to the manufacturer. If 83,000 were produced, assign a…

A: Given: Total number of calculators produced=83,000 Number of calculators returned=1460

Q: If each of the letters in the word bookkeeper are written individually on one of ten pieces of…

A: The given word is “bookkeeper”.

Q: quiz has 11 multiple choice questions with each having 3 choices. Suppose a student decides to…

A:

Q: An opaque bag contains 13 yellow and 18 teal marbles. If two marbles are randomly chosen from the…

A: Answer: From the given data, Number of yellow marbles = 13 Number of teal marbles = 18 Total number…

Q: The mean number of fires in an organized industrial district is one per week. If the records of 10…

A: The given data: Mean, λ=1  This follows Poisson distribution. PX=x=λxe-λx! Thus the probability that…

Q: Each individual letter of the word Nebraska is placed on a piece of​ paper, and all 8 pieces of…

A: In the word Nebraska, there are 5 consonants.

Q: An online quiz has 10 True or False questions. What is the probability that a student got exactly…

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: if a single die is rolled, what is the probability of it rolling on a number less than 2

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Q: when a die is rolled, what is the probability that a four will appear on the top face?

A: We have given that when a die is rolled, the sample space isS = {1, 2, 3, 4, 5, 6 }

Q: In a bag of marbles, there are 12 green, 12 blue, and one red. Find the probability for each…

A: As per given by the question, there are 12 green, 12 blue, and one red marbles in a bag. Now, 1.…

Q: Suppose a jar contains 13 red marbles and 16 blue marbles. If you reach in the jar and pull out 2…

A:

Q: A single card is randomly selected from a standard deck of 52 cards. Determine the probability of…

A: Given,total no.of cards=52 no.of 9 numberd cards=4

Q: Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced…

A: We know that  There are 52 card in the deck in which they divided into two color i.e red(26) and…

Q: A quiz has 12 multiple choice questions with each having 3 choices. Suppose a student decides to…

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Q: If approximately 2% of the people in a room of 300 people are left-handed, find the probability that…

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Q: Out of a group of 10 patients treated with a new drug, 4 suffered a relapse. If 3 patients are…

A:

Q: Suppose a jar contains 10 red marbles and 13 blue marbles. If you reach in the jar and pull out 2…

A:

Q: Suppose that 46% of people own dogs. If you pick two people at random, what is the probability that…

A:

Q: If 8 people are randomly selected, find the probability that no 2 of them have the same birthday.…

A: Given: Total people = 8 To find: The probability that 8 people have different birthday.

Q: Suppose a jar contains 19 red marbles and 33 blue marbles. If you reach in the jar and pull out 2…

A: Using the given information we find the probability that both marbles are red ( without replacement)

Q: If 25 male college students are randomly​ selected, find the probability that their mean weight gain…

A: It is given that the mean is 1.2 and standard deviation is 5.6.

Q: Three balls are selected randomly from a bag containing 4 red balls and 7 blue ones. Find the…

A: From the provided information, Red balls = 4 Blue balls = 7 Total balls = 11

Q: Assume that when adults with smart phones are randomly selected 56% of them use them in meetings or…

A: Here we need to find the required probability using the binomial distribution.

Q: Suppose one card is drawn randomly from a standard deck of 52 cards. What is the…

A: Answer: From the given data, Total number of cards in a standard deck = 52 number of ace in a deck =…

Q: A single card is randomly selected from a standard deck of 52 cards. Determine the probability of…

A: Solution: There are total of 52 cards in a standard deck.  A standard deck of 52  cards has four…

Q: If one card is drawn at random from a standard 52 card deck, find the probability that the card is…

A: It is given that the one card is drawn at random from the pack of 52 cards.

Q: A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of…

A: Given problem is : A die is rolled 20 times and the number of twos that come up is tallied. Find…

Q: Suppose that of approximately 4,224,100 individuals of age 40 in the United States, 8038 die before…

A: Given: Sample size (n)=4,224,100number of individuals dies before 41 =8038number of individuals…

Q: A batch of 100 cords has 8 defective cords. If 4 cords, taken at random from the batch, are to be…

A:

Q: ach individual letter of the word TENNESSEE is placed on a piece of paper and all 9 pieces of paper…

A: Given letter is  : TENNESSEE Which contain nine letters we have formula for Probability=Possible…

Q: One student is randomly selected at random from a class with 11 girls and 12 boys. What is the…

A: Answer: From the given data, Number of girls in the class = 11 Number of boys in the class = 12…

Q: When a single die is tossed, what is the probability of getting a number that is a multiple of 2?

A:

Q: A single die is rolled eight times. Find the probability that 5 appears at most three times.

A: It is given that a single die rolled 8 times. That is probability of getting a 5 on each trial is…

Q: a random card is drawn from a standard deck of playing cards (52 cards), what is the probability of…

A:

Q: If 2 of 20 tires are defective and 8 of them are randomly chosen for inspection.what is the…

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Q: A family that is known to have two children is selected at random from amongst all families with two…

A:

Q: A sample of 4 different calculators is randomly selected from a group containing19 that are…

A: Obtain the probability that at least one of the calculators is defective. The probability that at…

Q: A Supervisor of a pharmacy found that 30% of the workers receive their spending money from part –…

A: Obtain the probability that at least 3 of them will have part- time jobs. The probability that at…

Q: If three people are selected at random, find the probability that at least two of them have the same…

A: Given: Three people are selected at random. The objective is to find the probability that at least…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.