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Chapter 6: Problem 7

Tealeaf, a company that offers management solutions to companies that sell online, announced in a 2008 consumer survey that nearly 9 out of 10 customers reported problems with transactions online. The survey sampled 2010 adults in the United States, 18 years and older, who had conducted an online transaction in the past year. Estimate the number of adults who reported problems with transactions online.

Short Answer

Expert verified
Question: Based on a survey of 2010 adults, 9 out of 10 customers reported problems with transactions online. Estimate the number of adults who reported problems. Answer: Approximately 1809 adults reported problems with transactions online.

Step by step solution

01

Calculate the fraction as a decimal value

We are given the fraction 9 out of 10 which represents the number of customers who reported problems online. To convert the fraction to a decimal, divide 9 by 10: Decimal value = 9/10 Calculate the decimal value: 9 梅 10 = 0.9 The decimal representation of the fraction is 0.9.
02

Estimate the number of adults who reported problems

Now that we have the decimal representation of the fraction, we can calculate the estimated number of adults who reported problems with transactions online by multiplying the decimal value (0.9) by the total number of adults surveyed (2010): Estimated number of adults with problems = 0.9 脳 2010 Calculate the estimated number of adults with problems: 0.9 脳 2010 = 1809 Therefore, it is estimated that 1809 adults reported problems with transactions online.

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