A stick of height 1.2 m casts a shadow of length 3.6 m. At the same time, a tree casts a shadow of 7.2 m

What is the first step of an indirect proof of a number that is divisible by two

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?

Six random samples were taken each year for three years. the table shows the inferred population for each type of fish for each year.