A jar contains four orange marbles numbered one to four. The jar also contains four green marbles numbered one to four. You randomly pick a marble. It is orange or has a number less than three.
Determine if the scenario involves mutually exclusive events. Then find the probability.

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%