Five hundred smartphone owners were asked if they use their phones to download sports scores. The responses are summarized in the following table:

a. What is the probability that a randomly sampled respondent from this group has used his or her smartphone to download sports scores?
b. What is the probability that a randomly sampled respondent from this group is female?
c. Given that a randomly sampled respondent has not used the smartphone to download sports scores, what is the probability that he or she is male?
d. Are the responses Yes and No independent of the respondent€™s gender?

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Yes Total No 105 Male Female Total 195 300 200 500 70 265 130 235