Answer:
36, 57, 87
Step-by-step explanation:
Answer:
h = 196/65
Step-by-step explanation:
65 miles /1 hour is the moving rate
200 miles is the distance to the railroad maker
h = ?
200- 4 miles = 196 miles were left behind the train
65miles /1 hour , 130miles/2hours , ..196miles/ ?hours
h = 196/65 = 3 hours and 1/65 minutes from an hour = 3 hours and 12/13 min.
60/ 65 = 12/13
We all know about the bell curve i.e. normal distribution curve. It is centered about the mean and spread equally on each side.
We describe the area of the curve with the help of standard deviations.
With in 1 standard deviation about the mean i.e. from -1 s.d. (left of mean) to +1 s.d. (right of mean), it covers 68% of the total area of curve.
So, the data that falls outside 1 standard deviation of the mean would be equal to (100% - 68%) i.e. 32%.
So, 32% is the final answer.
