Get Started with ixamBee
Start learning 50% faster. Sign in now
The Coefficient of Standard Deviation or Coefficient of Variation is a relative measure of dispersion given by Coefficient of Standard Deviation = (Standard Deviation)/ ( Mean )* 100 = σ / x ̄ * 100 It’s a pure number and can be used to compare the variability of 2 distributions expressed in different units. It is mainly used to compare measurements that use different units or when means are vastly different.
If a person walks at (2/3) of his normal speed, he arrives at his office 30 minutes late. What is the usual time taken by him to ...
Howrah Express is scheduled to reach Howrah at 8:00 am, but due to the high number of trains the train couldn't get clearance for platform, and it got s...
A bike travels the same distance in 'h + 2.5' hours compared to a truck's 'h' hours from point 'P' to point 'Q'. Should the trip be completed in half by...
Ravi must go from Hyderabad to Delhi. The distance between Hyderabad and Delhi is 1,500 km. He decides to travel 25% of the distance on foot, 30% of the...
A car travels at a speed of 60 km/h for the first 2 hours, then at 80 km/h for the next 3 hours, and finally at 100 km/h for the last 1 hour. What is th...
A man travels some distance at a speed of 16 km/hr and returns at a speed of 8 km/hr. If the total time taken by him is 3 hrs 45 min, the distance is
Without stoppage, a train travels a certain distance with an average speed of 100 km/h, and with stoppage, it covers the same distance with an average s...
A Boy plants a bomb at a place in Diwali and starts running at 30 m/s. After 54 seconds the bomb was blast. In how much time the sound of blast will be ...
A train travels at a speed of 60 km/h for the first 1 hour, 50 km/h for the next 2 hours, and 40 km/h for the next 3 hours. What is the average speed of...
