The Normal distribution, or the bell-shaped distribution, is of special interest This distribution describes many human traits All Normal curves have
11) Assume that the random variable X is normally distributed, with mean µ = 60 and standard deviation ? = 10 Compute the probability P(X > 68)
Suppose our experiment is to toss a single fair die, and we are interested in the number rolled We define our random variable X to be
26) The weight of 2-year old hyraxes is known to be normally distributed with mean µ = 2200 grams and standard deviation ? = 365 grams (a) Draw a normal curve
Instead, we emphasize the characteristic symmetric, bell- like shape Unlike distributions in general, any normal curve is exactly described by giving its mean
d) median equals the variance ANSWER: c TYPE: MC DIFFICULTY: Easy KEYWORDS: Poisson distribution, mean, standard deviation, properties
(b) (2 marks) Describe the sampling distribution of the sample mean for a ran- dom sample of 25 vacuums Sol) 100 ? follows a normal distribution with mean ?=
26 juil 2017 · approximately normal, regardless of the shape of the population C) Because for a large sample size n, it says the sampling distribution of
9 nov 2016 · Section 7 1 Standard Normal Distribution The sample must contain the characteristics of the population in order to be
Many human characteristics, such as height, IQ or examination scores of a large number of people, follow the normal distribution Figure 1: A normal curve
The ratio of the variance to the mean of a Binomial random variable is less than (a) The binomial distribution tends to be more symmetric as the probability of
Random variable and probability distribution ▫ The mean Normal Standard Normal Distribution ▫ Seminar 6 Characteristics of a Normal Dist