help please i don't understand this is statistics 200 homework week 3

happen, what would you think is the reason? 5.3.4 Approximately 10% of all people are left-handed. Consider a grouping of fifteen people. a.) State the random variable. b.) Write the probability distribution. c.) Draw a histogram. d.) Describe the shape of the histogram. e.) Find the mean. f.) Find the variance. g.) Find the standard deviation