Would you please help with the questions? thanks!

What should I buy? A study conducted by a research group in a recent year reported that 56% of cell phone owners used their [u phones inside a store for guidance on purchasing decisions. A sample of 14 cell phone owners is studied. Round the answers to at E] least four decimal places. (a) What is the probability that ve or more of them used their phones for guidance on purchasing decisions? The probability that ve or more of them used their phones for guidance on purchasing decisions is D . (b) What is the probability that fewer than nine of them used their phones for guidance on purchasing decisions? The probability that fewer than nine of them used their phona for guidance on purchasing decisions is D . (b) What is the probability that fewer than nine of them used their phones for guidance on purchasing decisions? The probability that fewer than nine of them used their phon for guidance on purchasing decisions is D . (c) What is the probability that exactly seven of them used their phones for guidance on purchasing decisions? The probability that exactlyr seven of them used their phones for guidance on purchasing decisions is D . (d) lWould it be unusual if more than 10 of them used their phones for guidance on purchasing decisions? It (Choose one) V be unusual if more than 10 of them used their phones for guidance on purchasing decisions since the probability is D