1. A box contains a \( \$ 1 \) bill, a \( \$ 5 \) bill, a \( \$ 10 \) bill, and a \( \$ 20 \) bill. A bill is drawn at random and not replaced. A second bill is then drawn. How many outcomes are possible? \( \begin{array}{llll}\text { a. } 16 & \text { b. } 8 & \text { c. } 10 & \text { d. } 12\end{array} \)

Show complete work on your worksheet! You many use the !, nCr and nPr functions on your calculator to CHECK your calculations, but you must show the formulas with appropriate values substituted in first. Five representatives from a senior class of 280 students are to be chosen for the student council. In how many ways can students be chosen to represent the senior class on the senior council? permutation \( n=280 \) How many ways? thenstion

¿Cuantas diferentes permutaciones o acomodos se pueden realizar con los números \( 1,2,3 \) tomando DOS a la vez?

Consider the figures to the right. Assume that one number from 1 to 7 is equally likely to be selected at random. Each number corresponds to one of the seven figures shown. Find the probability of selecting a circle, given that an odd number is solected. \( \mathrm{P}( \) circle \( / \) odd) \( =\square \) (Type an integer or a simplified fraction.)

Consider the figures to the right. Assume that one number from 1 to 7 is equally likely to be selected at random. Each number corresponds to one of the seven figures shown. Find the probability of selecting a triangle, given that an odd number is selected. \( \mathrm{P}( \) triangle - odd \( )=\square \) (Type an integer or a simplified fraction.)

02. No lançamento de um dado, defina o espaço amostral e os eventos a) "ocorrência de número par"; b) "ocorrência de um número menor do que c) ""; d) "ocorrência de múltiplo de 3"; e) "ocorrência de um número menor do que um número maior do que e) zero e menor do que 7 ".