Answer:
200+300=500
Step-by-step explanation:
200+300=500 or 100+400=500
The 50th percentile is the median so the z score will be 0
Answer:
60 minutes including the 15 minute rest.
Step-by-step explanation:
450/10 is 45. Therefore, biking for 45 minutes will loose 450 calories, 10 calories per minute. Maybe half way during the 45 minutes Spencer will take the 15 minute rest. This brings the biking trip 60 minutes.
