Isabel Briggs Myers was a pioneer in the study of personality types. The persona

Question

Isabel Briggs Myers was a pioneer in the study of personality types. The personality types are broadly defined according to four main preferences. Do married couples choose similar or different personality types in their mates? The following data give an indication.     

Similarities and Differences in a Random Sample of 375 Married Couples Number of Similar Preferences Number of Married Couples                     All four
                    Three
                    Two
                    One
                    None                                      29
                    124
                    120
                    66
                    36                 

Explanation / Answer

a)

0=36/375=0.096

1=66/375=0.176

2=120/375=0.320

3=124/375=0.330

4=29/375=0.077

b)yes the robabilities add up to 1 because they cover the entire sample space.

sample space is 0, 1, 2, 3, 4 personality preferences in common

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