Use the "at least once" rule to find the probability of getting at least one 2 in four rolls of a single fair die.

Probability of getting at least one 2 equals 0.5177

Step-by-step explanation:

The probability of at least one success is

where,

'p' is probability of success of 1 trail

'n' is number of events

We have probability of getting 2 is 1/6 thus 'p' = 1/6

Applying values we get

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)