Chapter 3 Assignmen You have surveyed 100 randomly selected people 18 to 35 years old, and 100 randomly selected people 36 years old and over to determine the rates of smartphone use in different age groups. The results are shown in the table below. Use this table to answer questions 1-5 below. 18-35 36 and over 46 Total Smartphone No smartphone Total 57 103 13 44 57 70 90 160 Assuming we are selecting a single individual at random from this group, what is the probability that: 1. The individual uses a smartphone? 2. The individual is 18 to 35 and uses a smartphone? 3. The individual uses a smartphone or is 36 and over?

Q: The distribution of Master's degrees conferred by a university is listed in the table. Frequency 216…

A: Answer Major                         FrequencyMathematics                   216English…

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A: From the table we get: n(female)=34 n(B)=15 n(female and B)=11   So, n(female or B)=n(female)+n(B) -…

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A: Solution : p = 48% = 48/100 = 0.48 n = 33 Let x be the number of violent felons in the…

Q: A test was given to a group of students. The grades and gender are summarized belo Total Male 8. 14…

A: From the table we get: n(male)=31 n(B and male)=9

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A: Assume that p as the true proportion of first year students.

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A: From the given data P=40%=0.40

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Q: ACcording to a 2009 Reader's Digest article, people throw away about 12% of what they buy at the…

A: Defines that p is true proportion of the number of people, who throw away what they buy at the…

Q: A test was given to a group of students. The grades and gender are summarized below A Total Male 9.…

A: Given that  The number of students got B grade  (B) = 16 The total number of female students  (F) =…

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A: From the contingency table we can see that there are total 78 students who took the test. So, number…

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Q: Part-time Full-time Total No Gym Membership 16 48 64 Gym Membership 11 55 66 Total 27 103 130   A…

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Q: Question 30 There are eleven female board members and nineteen male board members. You should show…

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Q: A B Total Male 11 9. 25 Female 17 4 18 39 Total 22 15 27 64 If one student is chosen at random from…

A: Given : one student is chosen at random from those who took the test

Q: Giving a test to a group of students, the grades and gender are summarized below A C Total Male 17…

A:

Q: Here are the results of a survey that students conducted at a mall. The students conducted this…

A: a) The probability that the person has a tattoo is, Probability=Column total for tattooTotal number…

Q: QUESTION 1 The Table below displays the number of books read by different age groups. Fiction Books…

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Q: A survey in November 2012 asked a random sample of 2,000 US adults "How often do you talk about…

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Q: ______________ is obtained by calculating the difference between the observed number of cases and…

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Q: QUESTION 4 Three marbles are drawn from a bag containing 5 yellow marbles, 3 green marbles, and 12…

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Q: 3. A 3-colour spinner is spun 160 times. The outcomes are shown in this table. What is the…

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Q: QUESTION 2 The Table below displays the number of books read by different age groups. Non Fiction…

A: Required probability is P(age between 15-20 years and reads Fiction books)

Q: QUESTION 1 The Table below displays the number of books read by different age groups. Fiction Books…

A: Given data is   Fiction Books Biography Books Non Fiction Books Total 15-20 years 18 5 10 33…

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Q: Giving a test to a group of students, the grades and gender are summarized below A В Total Male 12…

A: Given:   A B C Total Male 12 15 3 30 Female 10 17 7 34 Total 22 32 10 64 To find:…

Q: A study of consumer smoking habits includes 200 people in the 18-22 age bracket (40 of whom smoke),…

A: Given:   Smoke Not smoke Total 18 - 22 40 160 200 23-30 31 99 130 31-40 30 70 100 Total…