binomial distribution help ?

All students can be either ‘left-handed’ or ‘right-handed’ and that a quarter are left-handed. A random sample of five students is chosen.
a)The probability that the first three chosen are left-handed and the next two right-handed is ?
b)In how many different orders can three left-handed and two right-handed students be chosen?
C)the probability that two left-handed and three right-handed students are chosen is ?
d)The most likely number of right-handed students in a sample of 5 student is ?
I keep trying, but I keep getting them wrong please help I have no idea what to do.

Reply 1

TSR Jessica

Sorry you've not had any responses about this. :frown:

Why not try posting in a specific subject forum- you might have more luck there.

Here's a link to our subject forum which should help get you more responses. :redface: