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The following cross tabulation gives the distribution of a variable measuring wh

ID: 3064265 • Letter: T

Question

The following cross tabulation gives the distribution of a variable measuring whether men and women felt stress at work.

Gender /Felt Stressed at Work

Male

Female

Total

Yes

244

282

526

No

495

480

975

Total

739

762

1,501

a. What is the probability that a person who is randomly chosen (as in a name chosen out of a hat) feels stressed?

b. Calculate the probability that a stressed person is female.

c. Calculate the probability that a female is stressed.

d. Which gender do you think is more stressed? Explain why you think this.

Gender /Felt Stressed at Work

Male

Female

Total

Yes

244

282

526

No

495

480

975

Total

739

762

1,501

Explanation / Answer

a)P(feels  stressed) =526/1501=0.3504

b) P(stressed person is female) =282/526=0.5361

c) P(probability that a female is stressed) =282/762=0.3701

d) as probability of a male to be stressed =244/739=0.3302 is lower than a female to be stressed

we expect that female are more strerssed

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