Lisa has collected data to find that the number of pages per book on a book shelf has a normal distribution. What is the probability that a randomly selected book has fewer than 153
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
Lisa has collected data to find that the number of pages per book on a book shelf has a
The empirical rule states that 68% of the data lies within one standard deviation from the mean and 95% data lies within two standard deviations from the mean and 99.7% of the data lies within 3 standard deviations from the mean.
Given that ,
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
