Problem 1032

Write the inequality in interval notation. x < 7   Solution:-   In interval notation, a square bracket is used to show that a number is included in the set…

Problem 1031

Find the expected payback for a game in which you bet 2000.   Solution:-   Let x, the random variable, represent the possible amounts of payback, where payback is the…

Problem 1030

A  random study reported that 80% of very-low-birth-weight babies graduate from high school by age 20. If 280 very-low-birth-weight babies are followed through high school, how many would you expect…