9. sandra is a very busy mom with three children who are very successful in school. she tries to remember to praise them for their accomplishments, but she does not always remember. the children are experiencing what b. f. skinner would call what?

Arandom variable x has a mean of 10 and a standard deviation of 3. if each value of x is multiplied by 2, what will the new mean and standard deviation be?

If you have a green turn signal light, you must before making your turn. a. check the crosswalk b. yield to cross traffic and check the crosswalk c. turn off your car's turn signal d. none of the above

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii