PLEASE HELP What should I buy? A study conducted by the Pew Research Center reported that 58% of cell phone owners used their phones inside a store for guidance on purchasing decisions. A sample of 15 cell phone owners is studied. (b)What is the probability that fewer than 10 of them used their phones for guidance on purchasing decisions?

Me i have been stuck on this question what is the probability that carol, the 44-year-old you're considering for a 20-year policy, lives to be 64 years old? note that this is a conditional probability. another way of saying this is, "what is the probability that carol turns 64 years old given that she turns 44 years old? " carol is a non-hispanic black female, so look in table 18.