Let's consider a binomial probability distribution. Go to

https://stapplet.com/binom.html

a.Enter p=.5 and n is equal to 4 then click 'plot distribution'. What is the shape of the distribution (for shape questions use unimodal and symmetric (both words are one choice), skewed left, skewed right, j-shaped left or j-shaped right).

b.Now change n to 20 and then to 100. Does the graph shape that you answered in a above change? Yes or no - if yes give new graph shape name.

c.Now change p to 0.1 and n back 4. What is the graph shape?

d.What is the shape when n is increased to 20?

e.What is the shape when n is increased to 100?

f. T or F When p is close to .5, the graph will always look unimodal and symmetric

g.T or F When p is really small (e.g., .1) the graph will never look unimodal and symmetric.