In a survey, it was found that 80% of adults operate the flusher of toilets in public restrooms with their foot. (a) If 300 adults are randomly selected, how many would we expect to flush toilets in public restrooms with their foot? (b) Would it be unusual to observe 255 adults who flush toilets in public restrooms with their foot? (a) We would expect (Type a whole number.) adults to flush toilets in public restrooms with their foot. (b) Would it be unusual to observe 255 adults who flush toilets in public restrooms with their foot? Choose the correct answer below. O A. Yes, because 255 is greater than u + 20. O B. No, because 255 is greater than u + 20. O C. Yes, because 255 is between u- 20 and u+ 20. O D. No, because 255 is less than u-20. O E. No, because 255 is between u- 20 and u+ 20.
In a survey, it was found that 80% of adults operate the flusher of toilets in public restrooms with their foot. (a) If 300 adults are randomly selected, how many would we expect to flush toilets in public restrooms with their foot? (b) Would it be unusual to observe 255 adults who flush toilets in public restrooms with their foot? (a) We would expect (Type a whole number.) adults to flush toilets in public restrooms with their foot. (b) Would it be unusual to observe 255 adults who flush toilets in public restrooms with their foot? Choose the correct answer below. O A. Yes, because 255 is greater than u + 20. O B. No, because 255 is greater than u + 20. O C. Yes, because 255 is between u- 20 and u+ 20. O D. No, because 255 is less than u-20. O E. No, because 255 is between u- 20 and u+ 20.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Transcribed Image Text:In a survey, it was found that 80% of adults operate the flusher of toilets in public restrooms with their foot.
(a) If 300 adults are randomly selected, how many would we expect to flush toilets in public restrooms with their foot?
(b) Would it be unusual to observe 255 adults who flush toilets in public restrooms with their foot?
(a) We would expect
(Type a whole number.)
adults to flush toilets in public restrooms with their foot.
(b) Would it be unusual to observe 255 adults who flush toilets in public restrooms with their foot? Choose the correct answer below.
O A. Yes, because 255 is greater than u + 2o.
O B. No, because 255 is greater than u + 20.
O C. Yes, because 255 is between u - 20 and u+ 20.
O D. No, because 255 is less than u- 20.
O E. No, because 255 is between u -20 and u+ 20.
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