If you roll a single six-sided die, what is the propability if rolling an odd number

1/2 of a chance to roll a odd number.

Step-by-step explanation:

On a six sided die the odd numbers are 1,3, and 5. So that would be 3/6 and then simplified is 1/2

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.