Ms. Brener has received a $1,000 gift as a gift. She wants to save it to use for her four – year old daughter's college fund. Bright Start College Savings is currently offering a guaranteed 10% return for each year the money is in the fund. Bank of America is currently offering $200 for each year the money is in the fund. At what point will both accounts be equal?

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

How is the interquartile range calculated?