Statistics Question

According to "Psychology Today" numerous studies indicate that the prevalence of left-handedness lies somewhere between 9.3% and 18.1% with the best overall estimate being 10.6%. The percentage of left-handedness varies by country with some countries only having 3% of people being left- handed. It appears that the lower rates of left-handedness reflect social conventions on which hand is used for writing and eating. According to Statistica.com (2020) 4.70% of people in Japan are left-handed. a) What sort of variable is 4.70%? b) You are visiting Tokyo for work. Determine the probability that: I. none of the next 10 people you meet are left-handed. II. At least some of the next 10 people you meet are left-handed III. 9 of the next 10 people you meet are left-handed