1.determine the value of n from: np3 = 5 (4p2)

2.consider the experiment of throwing of two coins,
a) establish the probability distribution

b) determine the expected value

c) determine the standard deviation

The approval of a judge. the wait line as well

Ibelieve that is true! but go with your gut.good luck!

Psychologists often talk of the magical number "7" - so it is generally assumed that we can keep 7 (more or less, so 5-9 is the correct answer) items in our short term memory - we know this as a result of many experiments.

we can increase this by chunking, so for example "7 8 9 5 3" is harder to remember than "78 95 3" - try it yourself!

the answer is a)