It will equal 0.003 km per 3 miles because per 1 mile their is 0.001 kilometers
Answer: 0.1587
Step-by-step explanation:
Given : Adult male heights have a normal probability distribution with a mean of 70 inches and a standard deviation of 4 inches.
i.e.
Let x be the random variable that represents the heights of adult males.
Also,
For x= 74 , we have
Then, the probability that a randomly selected male is more than 74 inches tall:-
[using z-value table.]
Hence, the probability that a randomly selected male is more than 74 inches tall = 0.1587
Answer:Lucas is faster
Step-by-step explanation:
Distance = speed × time
Time = distance × speed
the path from the bottom to the top of the mountain was 2 miles.
James climbed at an average rate of 3 mph. This means that the time it took James to climb to the top of the mountain would be
2/3 hours
James ran back at 4 mph. This means that the time it took James run back to the bottom of the mountain would be
2/4 = 1/2 hours
Total time that James spent would be
2/3 + 1/2 = 7/6 = 1.7 hours.
Lucas climbed at an average rate of 2 mph. This means that the time it took Lucas to climb to the top of the mountain would be
2/2 = 1 hour
Lucas ran back at 5 mph. This means that the time it took Lucas to run back to the bottom of the mountain would be
2/5 hours
Total time that James spent would be
1 + 2/5 = 1.4hours.