Question

3. It is well known that similarity in attitudes, beliefs, and interests plays an important role in interpersonal attraction. Suppose a research developed a questionnaire that measures how liberal or conservative one’s attitudes are. Low scores means the person is more liberal, high scores indicate conservative attitudes. Below is hypothetical data from married couples.

Couple |
Wife |
Husband |

A |
11 |
14 |

B |
6 |
7 |

C |
16 |
15 |

D |
4 |
7 |

E |
1 |
3 |

F |
10 |
9 |

G |
3 |
6 |

H |
5 |
9 |

I |
3 |
8 |

J |
12 |
15 |

K |
4 |
5 |

Calculate the Pearson’s r for the wives and husbands

Answer #1

**r= 0.9141**

It is well known that similarity in attitudes, beliefs, and
interests play an important role in interpersonal attraction. Thus,
correlations between married couples should be strong. Suppose a
researcher developed a questionnaire that measures how liberal or
conservative one's attitudes are. Low scores indicate the person
has liberal attitudes, whereas high scores indicate conservatism.
The following hypothetical data are scores for married couples:
SSwife = 196, SShusband =
208, SP = -164.
Couple
Wife
Husband
A
1
14
B
14...

1. Use Bayes' theorem or a tree diagram to calculate the
indicated probability. Round your answer to four decimal places.
HINT [See Example 3.]
P(A | B) =
.2, P(B) = .4,
P(A | B') =
.6. Find P(B |
A).
P(B | A) =
2. Use Bayes' theorem or a tree diagram to calculate the
indicated probability. Round your answer to four decimal places.
HINT [See Example 3.]
P(X | Y) = 0.4, P(Y' ) = 0.3, P(X |...

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