Accepted characters : numbers, decimal point markers (period or comma), sign ind
ID: 3253122 • Letter: A
Question
Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker.
Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
An ice cream vendor sells three flavors: chocolate, strawberry, and vanilla. Forty five percent of the sales are chocolate, while 30% are strawberry, with the rest vanilla flavored. Sales are by the cone or the cup. The percentages of cones sales for chocolate, strawberry, and vanilla, are 75%, 60%, and 40%, respectively. For a randomly selected sale, define the following events:
Explanation / Answer
P( Cup and chocolate flavour ) = P( chocolate flavour ) * P ( cup | chocolate flavour )
i.e
P( A1 and B^ ) = P( A1 ) * P( B^ | A1 ) = 0.45 * ( 1 - 0.75 ) = 0.1125 rounding of to 0.11