A poll of 120 city residents found that 30 had visited the new museum, and that 80 had been to the new park. If it appeared that going to the park and going to the museum were independent events, how many of those polled had been to both? Park Hint: P(went to park and went to museum) divided by total people surveyed 20 15 Museum Yes No Total Yes ?? 80 No 40 Total 30 90 120 10 O It cannot be determined.

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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A poll of 120 city residents found that 30 had visited the new museum, and that 80 had been to the new park. If it appeared that going to the park and
going to the museum were independent events, how many of those polled had been to both?
Park
O 20
O 15
Museum
Yes No Total
Hint: P(went to park and went to museum) divided by total people surveyed
O 10
Yes ??
No
80
40
Total 30 90 120
OIt cannot be determined.
Transcribed Image Text:A poll of 120 city residents found that 30 had visited the new museum, and that 80 had been to the new park. If it appeared that going to the park and going to the museum were independent events, how many of those polled had been to both? Park O 20 O 15 Museum Yes No Total Hint: P(went to park and went to museum) divided by total people surveyed O 10 Yes ?? No 80 40 Total 30 90 120 OIt cannot be determined.
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