in a survey of 30 males and 50 females it was found that 15 males and...

in a survey of 30 males and 50 females it was found that 15 males and 20 females exercise regularly. if a person is selected at random what is the probability that:
1.they are male?
2.They are female?
3. They are male who exercise regularly

Solutions

Expert Solution

1. The total number of people are 30 males plus 50 females, ie 80 people. The probability that the choosen is male will be .

2. The probability that the choosen is female will be .

3. The probability that the chosen is male who exercizes regularly is , as there are 15 males who exercizes regularly among the 80 people.

orchestra answered 1 year ago

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