Question

S={4,7,10,13,16,19}
What is the probability that the number is between 4 and 10

Answer 1

Answer:

let 4 be A1 , 7 be A2 , 10 be A3 and so on ...

From above,

A2-A1=A3-A2 and so on ... = 3.

So we can say the probability is 3

Answer 2

Answer:

Here's your answer.

Hope this helps you :)