What are the necessary conditions for a random variable to have a binomial distribution?
There can only be two possible outcomes, 'success' and 'fail' (e.g heads or tails) There is a fixed number of trialsThe probabilities of 'success' and 'fail' are constant and stay the same in each trial (e.g the probability of rolling a 3 on a dice is always 1/6)The result of each trial is independent of the result of each previous trial (e.g getting a heads at one trial does not change the likelihood of getting a heads at the next trial, the probability is still 0.5)
JT
Related Maths A Level answers
All answers ▸What is the derivative of y=(e^(2x))(sin(3x))
differentiate with respect to x: (x^3)(e^x)
Show that the integral of tan(x) is ln|sec(x)| + C where C is a constant.
1. (a) Find the sum of all the integers between 1 and 1000 which are divisible by 7. (b) Hence, or otherwise, evaluate the sum of (7r+2) from r=1 to r=142