In a survey, 63% of Americans said they own an answering machine. If 15 Americans are selected at random, find the probability that exactly 10 own an answering machine. Round to at least four decimal places.

Q: In a lottery game, a player picks 9 numbers from 1 to 49. If 8 of the 9 numbers match those drawn,…

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Q: The probability that a lab passes a health and safety inspection is 97%.  A health and safety…

A: Let X: number of labs.X has binomial distribution because trials are finite, trials are independent…

Q: Suppose a jar contains 19 red marbles and 10 blue marbles. If you reach in the jar and pull out 2…

A: Given that : A jar contains  Red marbles = 19 Blue marbles = 10  Total marbles = 29   By using the…

Q: 31% of all college students major in STEM (Science, Technology, Engineering, and Math). If 39…

A: Given,n=39p=0.31Let X=no.of students major in STEM.X~Binomial(n=39 , p=0.31)P(X=x)=39x…

Q: Out of all families with 4 children, you select one family at random.  What are the chances that the…

A: Given,A family has 4 childernso, total possible out comes are 16 (24=16)

Q: If a seed is planted, it has a 70% chance of growing into a healthy plant. If 8 seeds are planted,…

A: Answer:- Given, a seed is planted, it has a 70% chance of growing into a healthy plant.…

Q: A student takes a 20-question multiple-choice test with 4 choices for each question. If the student…

A: The sample size n is 20.

Q: One card is selected at random from a standard deck of cards (52 cards in a deck). Determine the…

A: 1 card is drawn, what is the probability that, 1 card is 5 or 1 card is HEARTTotal number of ways of…

Q: Suppose you roll a red die where each face represents a number from 1 to 6. Determine the…

A: When a die is rolled n(S)=6 S={1,2,3,4,5,6}

Q: ut of 23 students in a class, 10 major in Science. Find the probability that two randomly selected…

A: Given : sample size, n = 23 10 major in Science  Number of ways of selecting two students from…

Q: A student takes a 20-question multiple-choice test with 4 choices for each question. If the student…

A: The sample size n is 20.

Q: According to a recent survey, 5 out of 60 people who purchase pet insurance are women. If 7 pet…

A: According to a recent survey, 5 out of 60 people who purchase pet insurance are women. If 7 pet…

Q: A single die is rolled eight times. find the probability that 6 appears once or twice.

A: Let X represent the number of times 6 appears n=8 p=1/6   X~ Binomial (8, 1/6)

Q: There are 4 sets of balls numbered 1 through 9 placed in a bowl. If 4 balls are randomly chosen…

A: Total number of sets = 44 balls are randomly chosen without replacement.Total number of sets (n) =…

Q: The Gallup Poll reported that  52%  of Americans used a seat belt the last time they got into a…

A: Let X be number of people used a seat belt the last time they got into a car from binomial…

Q: Five cards are dealt from a full deck. Find the probability that all are hearts and round your…

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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: In a survey, 60% of Americans said they own an answering machine. If 13 Americans are selected at…

A: From the provided information, 60% of Americans said they own an answering machine that is (p) =…

Q: A single six-sided die is rolled. Find the probability of rolling a 3 , 5, or 6 Round your answer to…

A: Given data: A single six-sided die is rolled. To find: Find the probability of rolling a 3 , 5, or…

Q: The national institute of mental health reports a 25% chance of an adult suffering from a…

A: Answer: From the given data, P = 25% = 0.25 Sample size (n) = 7 X follows binomial distribution,

Q: 64% of all Americans are home owners. If 41 Americans are randomly selected, find the probability…

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Q: A quiz consists of 2 true-false questions and 4 multiple-choice questions (each with 4 choices with…

A: Given data Quiz consists of 2 true-false questions 4 multiple-choice questions Total question = 2+4…

Q: In a survey of college students, 840 said that they have cheated on an exam and 1765 said that they…

A: Given that Number of students who have cheated =840 Number of students who have not cheated =1765 If…

Q: A coin is tossed 10 times. Find the probability of tossing five or six heads.

A: Given that a coin is tossed 10 times. Note that probability for getting one head in one toss p is…

Q: Suppose a jar contains 12 red marbles and 35 blue marbles. If you reach in the jar and pull out 2…

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Q: The Gallup Poll reported that 43% of Americans are fans of professional baseball. If 4 people are…

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Q: 100 people each have a probability of 0.01 of contracting a disease. What is the probability that…

A: Let the random variable X denote the no. of people contracting a disease and it follows binomial…

Q: 27% of all college students major in STEM (Science, Technology, Engineering, and Math). If 50…

A: p( major in STEM)=p=0.27q=1-p=1-0.27=0.73n=50x= no. of them major in STEMhere data follows the…

Q: 27% of all college students major in STEM (Science, Technology, Engineering, and Math). If 35…

A: Formula : Binomial distribution is given by

Q: Use the attached random digit table to estimate the probability of the event that at least 2 people…

A: Random digit table is read from left to right and from top to bottom.

Q: A poll showed that 50% of Americans say they believe that life exists elsewhere in the galaxy. What…

A: here given , A poll showed that 50% of Americans say they believe that life exists elsewhere in the…

Q: Assume that male and female births are equally likely and that the birth of any child does not…

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Q: find the probability that the educator is a female or an associate professor

A: We have given that an educators at a college were classified according to gender and academic rank.

Q: A single card is drawn from a deck. Find the probability of selecting a jack or a king. Note: Only…

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Q: Find the probability of obtaining an even number in one roll of a die.

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Q: Two cards are selected from a standard deck with replacement. Find the probability that they are…

A: Given that Total cards=52 Number of hearts cards=13 p=Number of hearts cards/Total cards…

Q: There are 4 sets of balls numbered 1 through 11 placed in a bowl. If 4 balls are randomly chosen…

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Q: A student takes a true-false test but did not study and randomly guesses each answer. There are 20…

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Q: Intel's microprocessors have a 1.8% chance of malfunctioning.  Determine the probability that a…

A: Given  Chances of malfunctioning of Intel's microprocessors  = 1.8% = 0.018

Q: A jar contains 7 poker chips: 4 blue, 2 red and 1 white. You randomly select two chips from the jar.…

A: GivenA jar containsNo.of blue chips=4No.of red chips=2No.of white chips=1Total no.of chips=7

Q: In a survey of college​ students, 808 said that they have cheated on an exam and 1770 said that they…

A: Given that in a survey of college​ students, 808 said that they have cheated on an exam and 1770…

Q: Out of 27 students in a class, 7 major in Nursing. Find the probability that two randomly selected…

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Q: A bag contains 3 pink gumballs, 4 red gumballs, and 2 green gumballs. Find the probability that a…

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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.