Suppose you examine whether your customers are aged under 18, or 18 and over, and whether they made a purchase at your store. Your results are in the following table: Under 18 Total .15 .17 e Purchas Total .40 .60 1 Let U = Under 18, NU = 18 or over, P=purchase, and NP=no purchase. Answer the following questions using probability notation, such as P(P[U) or P(NU and NP). '7. Using notation, what probability does .17 represent? What type of probability is this, conditional, marginal, 'and'? 8. Using notation, what probability does .15 represent? What type of probability is this, conditional, marginal, 'and'? 9. Using notation, what probability does .40 represent? What type of probability is this, conditional, marginal, 'and'? 10. Using notation, what probability does .25 represent? What type of probability is this, conditional, marginal, 'and'? 1 1. If we took .15,'.40, what probability does this represent? Use notation. What type of probability is this, conditional, marginal, 'and'? 12. If we took .15/.32, what probability does this represent? Use notation. What type of probability is this, conditional, marginal, 'and