Smokers started smoking before turning 18 years old. (a) If 100 adult smokers are randomly selected, how many would we expect to have started smoking before turning 18 years old? (b) Would it be unusual to observe 90 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? Why? (a) We would expect about 80 adult smokers to have started smoking before turning 18 years old. (Type a whole number.) (b) Would it be unusual to observe 90 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? us O A. No, because 90 is less than u-2o. O B. Yes, because 90 is between u- 20 and u + 20. es OC. Yes, because 90 is greater thanu+ 20. O D. No, because 90 is between u - 20 and u +20. O E. No, because 90 is greater than u + 20.

Smokers started smoking before turning 18 years old. (a) If 100 adult smokers are randomly selected, how many would we expect to have started smoking before turning 18 years old? (b) Would it be unusual to observe 90 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? Why? (a) We would expect about 80 adult smokers to have started smoking before turning 18 years old. (Type a whole number.) (b) Would it be unusual to observe 90 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? us O A. No, because 90 is less than u-2o. O B. Yes, because 90 is between u- 20 and u + 20. es OC. Yes, because 90 is greater thanu+ 20. O D. No, because 90 is between u - 20 and u +20. O E. No, because 90 is greater than u + 20.

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Description: According to an almanac, 80% of adult smokers started smoking before turning 18 years old.(a) If 100 adult smokers are randomly selected, how many would we expect to have started smoking before turning 18 years old?(b) Would it be unusual to observe

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.5: Interpreting Data

Problem 1C

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