The area within two standard deviations of the mean of a distribution is about what percent of the total?

Mrs. Julien's and Mrs. Castillejo's classes are selling cookie dough for a school fundraiser. Customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. Mrs.

A woman with blood type O is expecting a child. Her husband is blood type A. Both the woman's father and her husband's father had blood type B. What is the probability that the child will have type O blood?

Kayla is going to tile a 6 foot by 9 foot rectangular section of her bathroom wall with square tiles that measure 3 inches tall and 3 inches wide. How many tiles will she need for her project?

The length of a rectangle is 5/6 ft. The width is 3/8 ft. How much greater is the length of the rectangle than the width? Express your answer in lowest terms.

It takes sam 3 hours to do all of the yard work, but it takes his brother carl only 2 hours. how long, in hours, would take them to do the yard work if they work together?

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.