Question

A) From a sample of 9,750 Ajax trucks, 273 developed transmission problems within the first two years of operation. What is the probability that an Ajax truck will develop transmission problems within the first two years?

	273 : 9750
	273 : 9477
	273/9750
	1/2

B) From a sample of 9,750 Ajax trucks, 273 developed transmission problems within the first two years of operation. What type of probability is involved in this case?

	Classical Probability
	Relative Frequency
	Subjective Probability

Answer 1

(A)Probability= number of favourable event / possible number of sample

Here number of favourable event =273

Total number of sample=9750

Hence probability =273/9750

I.e Option C

(B) relative probability is defined as number of event in favour to that of the total cases.

Chances of selection is not equiprobable.

I.e based on relative frequency.

Classical probability is defined as number of possible ways an event can occur to that total number of ways.

Here the chance of selection is equiprobable.

Subjective probability is the probability which is varying with person to person i.e it is not unique always.

Hence this question categorised as the Relative frequency

Option B is true.