The covariance between the returns of stocks a and b is –0. 112. The standard deviation of the rates of return is 0. 26 for stock a and 0. 81 for stock b. The correlation of the rates of return between a and b is the closest to.

Kevin and jenny, who are both working full-time, have three children all under the age of ten. the two youngest children, who are three and five years old, attended eastside pre-school for a total cost of $3,000. ervin, who is nine, attended big kid daycare after school at a cost of $2,000. jenny has earned income of $15,000 and kevin earns $14,000. what amount of childcare expenses should be used to determine the child and dependent care credit?