If a binomial trial has a probability of success of 0.7 how many successes would you expect out of 2000 trials

Mean or expected value (μ ) = 1400

Step-by-step explanation:

Step(i):-

Given that the probability of success p = 0.7

Given number of trials n = 2000

Let 'X' be the random variable in binomial distribution

Now , we have to find the mean or expected value of the binomial distribution

Step(ii):-

 Mean = n p

 μ    = 2000× 0.7

  μ    = 1400

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4