NEED HELP STEP BY STEP statistics

User Generated

NatEbqevthrm72

Mathematics

Description

1. If a person is selected at random, what is the probability that the person is a female or favors the issue.

2. If a person is selected at random, what is the probability the person is a male or is against the issue.

GenderYesNoNo Opinion
Males72815
Females103687

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Explanation & Answer

Thank you for the opportunity to help you with your question!

First find the total number of males by adding across the rows:

Total males =  72 + 81 + 5 = 158

Now find the total number of females by adding across the rows:

Total females =  103 + 68  + 7 = 178

Also total  number  of people asked = 158 + 178  = 336

1. Now for the questions

Female = 178 

Favors the issue (male) = 72

 Hence P(female or favors issue) = (178 + 72)/ 336 = 250/336  =125/ 168

2. male = 158

against the issue (female) = 68

Hence P( male or against issue) = (158 + 68)/ 336 = 226/336 = 113/ 168


Please let me know if you need any clarification. I'm always happy to answer your questions.


Anonymous
Really useful study material!

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