# help me check my answers.

• Mar 19th 2009, 02:38 PM
darren_a1
I had this probability problem that I worked out. I did get most of the answers and was wondering if someone could please help me double check the answers and make sure they are correct.

I put my answers in Blue.

The Following Data reflect the attitudes city residents have toward the repealing of the city's sunday blue-law ordinance according to the respondents religious preference.

REPEAL OF BLUE LAW

Religion Disapprove Approve Total
-------------------------------------------------------------------------
Protestant 57 63 120

Catholic 33 17 50

Jewish 10 20 30
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Total 100 100 200

Give the probabilities for the following possible selections from these data.

a. selecting a catholic. 0.25

b. Selecting a Jewish person who approves of repeal 0.1

c. Selecting a protestant given they approve of repeal 63/200 = 0.315

d. Selecting a protestant and then a catholic with replacement 0.6 and 0.25

e. Selecting a person who disapproves of repeal given they are catholic.0.165

• Mar 23rd 2009, 05:03 AM
mr fantastic
Quote:

Originally Posted by darren_a1
I had this probability problem that I worked out. I did get most of the answers and was wondering if someone could please help me double check the answers and make sure they are correct.

I put my answers in Blue.

The Following Data reflect the attitudes city residents have toward the repealing of the city's sunday blue-law ordinance according to the respondents religious preference.

REPEAL OF BLUE LAW

Religion Disapprove Approve Total
-------------------------------------------------------------------------
Protestant 57 63 120

Catholic 33 17 50

Jewish 10 20 30
--------------------------------------------------------------------------
Total 100 100 200

Give the probabilities for the following possible selections from these data.

a. selecting a catholic. 0.25

b. Selecting a Jewish person who approves of repeal 0.1 Mr F says: No. It's 10/200.

c. Selecting a protestant given they approve of repeal 63/200 = 0.315 Mr F says: No. It's 63/100.

d. Selecting a protestant and then a catholic with replacement 0.6 and 0.25 Mr F says: No. It's (0.6)(0.25) = 0.15.

e. Selecting a person who disapproves of repeal given they are catholic.0.165 Mr F says: 33/50.