Advertisements
Advertisements
प्रश्न
Choose the correct alternative:
Which of the following statements is/are true regarding the normal distribution curve?
पर्याय
It is symmetrical and bell shaped curve
It is asymptotic in that each end approaches the horizontal axis but never reaches it
Its mean, median and mode are located at the same point
All of the above statements are true
उत्तर
All of the above statements are true
APPEARS IN
संबंधित प्रश्न
Define Bernoulli trials
Out of 750 families with 4 children each, how many families would be expected to have atmost 2 girls
Forty percent of business travellers carry a laptop. In a sample of 15 business travelers, what is the probability that atleast three of the travelers have a laptop?
A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability of 2 successes
An experiment succeeds twice as often as it fails, what is the probability that in next five trials there will be at least three successes
A car hiring firm has two cars. The demand for cars on each day is distributed as a Poison variate, with mean 1.5. Calculate the proportion of days on which some demand is refused
Choose the correct alternative:
Normal distribution was invented by
Choose the correct alternative:
If Z is a standard normal variate, the proportion of items lying between Z = – 0.5 and Z = – 3.0 is
Choose the correct alternative:
The time until the first failure of a brand of inkjet printers is normally distributed with a mean of 1,500 hours and a standard deviation of 200 hours. What proportion of printers fails before 1000 hours?
Choose the correct alternative:
The weights of newborn human babies are normally distributed with a mean of 3.2 kg and a standard deviation of 1.1 kg. What is the probability that a randomly selected newborn baby weight less than 2.0 kg?