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The following contingency table shows the results of a random survey of age and attitude to increasing the legal driving age to 21 years. Agree

The following contingency table shows the results of a random survey of age and attitude to increasing the legal driving age to 21 years.

Agree

Disagree

Unsure

Total

Under 25 years

83

96

69

200

25 up to 50 years

63

45

69

177

Over 50 years

24

26

3

53

Total

170

167

93

430

For this sample, what is the probability that a person is over 50 years OR disagrees with increasing the legal driving age? Please give your answer correctly rounded to two decimal places.

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