When a particular type of thumbtack isdropped, it will land point up (A flat-top thumbtack resting on its flat top

) or point down (A flat-top thumbtack resting on the edge of its flat top and the tip of its needle

). This experiment was repeated 100 times with the followingresults: pointup: 40 times; pointdown: 60 times.

a. What is the experimental probability that a particular type of thumbtack will land pointup?

b. What is the experimental probability that a particular type of thumbtack will land pointdown?

c. If the experiment was tried another 100 times would the same resultsoccur? Why?

d. Is it expected that nearly the same results occur on a secondtrial? Why?