Question

In problem 1 with counting technique you need to use to solve the problem?

	a.	Multiplication
	b.	N!
	c.	Combinations
	d.	Permutation This is the problem being mentioned: Provide a reasonable description of the sample space. Each of four (4) transmitted bits is classified as either in error or not in error. a. EEE, NEEE, ENEEE, …. b. EENN, EEN, NEE, …….. c. EEEE, NEEE, ENEE, …. d. NN, EEEE, NEE, EEEE, .. The correct answer is c.

Answer 1

The counting technique for determining the size of the sample space is a) Multiplication

The sample space contains elements of the form EEEE,NEEE, ENEE etc. So you have 4 bits and each bit can take one of two values: E or N. Thus, by multiplication, we get the size of sample space as 2*2*2*2=16.