4. Suppose only 40% of all drivers in Florida regularly wear a seatbelt. A random sample of 500 drivers is selected. What is the probability that (use normal approximation) Between 170 and 220 (inclusive) of the drivers in the sample regularly wear a seatbelt? b. а. Fewer than 175 of those in the sample regularly wear a seatbelt'?

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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Both answered please

4. Suppose only 40% of all drivers in Florida regularly wear a seatbelt. A random sample of 500 drivers is selected. What
is the probability that (use normal approximation)
Between 170 and 220 (inclusive) of the drivers in the sample regularly wear a seatbelt?
b.
а.
Fewer than 175 of those in the sample regularly wear a seatbelt'?
Transcribed Image Text:4. Suppose only 40% of all drivers in Florida regularly wear a seatbelt. A random sample of 500 drivers is selected. What is the probability that (use normal approximation) Between 170 and 220 (inclusive) of the drivers in the sample regularly wear a seatbelt? b. а. Fewer than 175 of those in the sample regularly wear a seatbelt'?
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