In kaplan and simon's experiment, they presented different versions of the mutilated checkerboard problem. participants in the group had the fastest response time.
a. blank
b. color
c. black and pink
d. bread and butter

Which expression is equivalent to? assume x > 0 and y > 0.

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour. what is the cyclist average rate for the round trip in miles per hour ?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.