We choose a number from the set {0, 1, . . . , 99} randomly, and denote by X the sum of its digits. Find the p. m.f. of X.

How many 2/5s are in 1 and 1/2 plz someone me right now

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?