A researcher wants to determine if the number of minutes spend watching television per day is independent of gender. A random sample of 315 adults was selected and the results are shown below. Is there enough evidence to conclude that the number of minutes spent watching television per day is related to gender? Use α= 0.05. Gender Minutes spent watching TV per day
0- 30min 30-60min 60-90 min 90 over min
Male 25 35 75 45
Female 30 45 45 15

a.Starting on a platform 2 feet above sea level, dive down to a location that is 18  feet below sea level, and then rise 8 feet.

Step-by-step explanation:

The first number (2) is positive and represents the height above the sea level that the scuba diver started. So, options c) and d) are incorrect.  

If the (-20) represent s the position (-20) feet below the sea, as stated in option b), then, the position (+8) will represent that the scuba diver will be 8 feet above the sea level in the next position, which has no sense.

Therefore, option a) is the correct one.