Suppose you know that for each scratch-off ticket you buy for a certain “instant win” lottery game the probability of winning is 1/100. you have purchased 99 tickets so far, with no luck. what is the probability that the next ticket you buy will be a winner?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

A23 – year – old male buys 100/300/100 liability insurance, collision insurance with a $100 deductible, and comprehensive insurance with a $250 deductible? what is his total annual premium? (a) $1142.00 (b) $1765.45 (c) $1770.10 (d) $1785.25