A survey of 1700 shoppers asked the social media influence able to purchase decisions? The results indicated that 20.3% of females responded that they purchased additions are influenced by social media compared to 10.5% of males (data extracted from"The myth of mansumer...;bit.ly/1JVaKoh)). The sample sizes of males and females were not provided. Suppose that the results indicated that of 850 males, 89 answered yes.Of 850 females, 173 answer yes.Constructed contingency table to evaluate the probabilities.

What is the probability that the respondent chosen at random

1. Indicates the social media does influence his/her purchase decisions?
2. Is a female and indicates that the social media does influence his/her purchase decisions?
3. Is female or is a person whose purchase decisions are influenced by social media?
4. Is a male or a female?