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According to a data company, 75% of smartphones in the world use Google's Android operating system in the third quarter of 2015. Complete parts a through d based on a random sample of 14 smartphone users. www a. What is the probability that exactly nine people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) b. What is the probability that all 14 people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) c. What is the probability that 11 or fewer people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) d. What are the mean and standard deviation for this distribution? The mean number of Android operating system users is (Type an integer or a decimal. Do not round.) The standard deviation of Android operating system users is (Round to four decimal places as needed.)

According to a data company, 75% of smartphones in the world use Google's Android operating system in the third quarter of 2015. Complete parts a through d based on a random sample of 14 smartphone users. www a. What is the probability that exactly nine people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) b. What is the probability that all 14 people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) c. What is the probability that 11 or fewer people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) d. What are the mean and standard deviation for this distribution? The mean number of Android operating system users is (Type an integer or a decimal. Do not round.) The standard deviation of Android operating system users is (Round to four decimal places as needed.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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According to a data company, 75% of smartphones in the world use Google's Android operating system in the third quarter of 2015. Complete parts a through d based on a random sample of 14 smartphone users. ... a. What is the probability that exactly nine people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) b. What is the probability that all 14 people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) c. What is the probability that 11 or fewer people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) d. What are the mean and standard deviation for this distribution? The mean number of Android operating system users is (Type an integer or a decimal. Do not round.) The standard deviation of Android operating system users is (Round to four decimal places as needed.)
Transcribed Image Text:According to a data company, 75% of smartphones in the world use Google's Android operating system in the third quarter of 2015. Complete parts a through d based on a random sample of 14 smartphone users. ... a. What is the probability that exactly nine people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) b. What is the probability that all 14 people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) c. What is the probability that 11 or fewer people from this sample have a smartphone using the Android operating system? The probability is (Round to four decimal places as needed.) d. What are the mean and standard deviation for this distribution? The mean number of Android operating system users is (Type an integer or a decimal. Do not round.) The standard deviation of Android operating system users is (Round to four decimal places as needed.)
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