The 2010 census found that 13.9% of adults in the United States identified themselves as beingof Hispanic origin. An opinion poll plans to interview 1500 adults at random.Find the probability that such a sample will contain 12% or fewer individuals of Hispanic origin.a. 0.017 O b.0.015 Oc.0.983 O d.0.013

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Answered: The 2010 census found that 13.9% of…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A recent study showed that 71% of adults need some type of corrective lens (glasses or contacts). a. If I grab a 6 random people what is the probability that exactly 4 need corrective lenses? b. Why doesn’t (0.71)^4 equal the answer for #1 above? Shouldn’t it? Explain in words. c. If I grab a 6 random people what is the probability that more than 4 need corrective lenses?
Of all the registered automobiles in a city, 5% fail the emissions test. Fifteen automobiles are selected at random to undergo an emissions test. Round the answers to at least four decimal places. a. Find the probability that exactly four of them fail the test. b.Find the probability that fewer than four of them fail the test. c.Find the probability that more than three of them fail the test.
10.2% of the population is 65 or older. Find the probability that the following number of persons selected at random from 20 people are 65 or older. The probability that none are 65 or older is. (Type an integer or decimal rounded to the nearest thousandth as needed.)
Fairview High School has an anime (Japanese animation) club that any student can attend. The relative frequency table shows the proportion of students in the high school who take Japanese and/or are in the anime club. Do not take Take Japanese Total Japanese In anime club 0.15 0.01 0.16 Not in anime club 0.05 0.79 0.84 Total 0.20 0.80 1.0 Given that a student takes Japanese, what is the likelihood that he or she is in the anime club?
A survey was conducted by Science Diet in which 125 families were asked how many dogs lived in their households. The results are shown below. Number of Dogs Number of Households 0 71 1 35 2 14 3 3 4 2 Total 125 What is the probability that a randomly selected family has more than one dog?
What is the probability that out of 175 chicks hatched on Peeper Farm, at least 80 will be female? Assume that males and females are equally probable, and round your answer to the nearest tenth of a percent. A. 38.1% B. 3.5% C. 99.7% D. 88.7%
Hershey Kiss Weight in Oz. Zach ,a Quality Process Engineer for Hershey Chocolates, pulled 16 random kisses from production and recorded their weights as shown.Zach uses the production number for each kiss in production to ensure that all of the kisses in production have an equal chance of being selected in his random number generator. .1618 .1607 .1613 .1607 .1610 .1611 .1609 .1597 .1586 .1604 .1607 .1606 .1611 .1620 .1610 .1609
Sun. Mon. Tues. Wed. Thurs. Fri. Sat. number of births 13 24 19 25 15 21 15 probability 0.098 0.181 0.143 0.189 0.113 0.159 0.113 Based on this one-week sample, what is the probability that a baby was born on a Tuesday and what is the probability of a baby being born on a weekday? Based on this one-week sample, compare the probability of a baby being born on a weekend versus a weekday.
2. Suppose that the probability that Bob will eat a kiwi is 61%. Find the probability that Bob will not eat a kiwi. This is a short answer question. The correct answer is an exact decimal number.
A survey was done to see which platform people prefer the most. Facebook Instagram Snapchat Twitter Male 45 71 89 55 Female 46 68 62 63 What is the probability of choosing someone who prefers instagram or is a female?
2. According to data from Statistics Canada, Chinese is the mother tongue of 8.1% of Toronto residents. a. If 3 Toronto residents are randomly selected, find the probability that they all have Chinese as their mother tongue. b. If 3 Toronto residents are randomly selected, find the probability that at least one of them has Chinese as their mother tongue. 1 Page 236, #1, Pearson Custom Mathematics for Canada: St. Clair College Introduction to Statistics Page 2 of 5 ΜΤH 237 Exam Review W21 M. Ripley c. If groups of 100 Toronto residents are randomly selected, what is the mean number of residents whose mother tongue is Chinese? d. If groups of 100 Toronto residents are randomly selected, what is the standard deviation for the number of residents whose mother tongue is Chinese? e. Would it be unusual to get 10 people whose mother tongue is Chinese in a randomly selected group of 100 Toronto residents? Why or why not??
In probability theory, rolling a die is considered to be an experiment. What is the term that corresponds to the possibility that the die shows the number 2? a. A probability of 2. b. A possible outcome. c. A normal distribution. d. A number.

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