Lindsie wants to see how many times she needs to roll a standard number cube before getting a 1. what is the probability lindsie will roll a 1 on her fifth roll and not before?

The answer is :

Step-by-step explanation:

A standard number cube has numbers from 1 to 6 on it.

Here, given is that Lindsie wants to see how many times she needs to roll a standard number cube before getting a 1.

p = (on an average: roll 6 times before getting a 1)

The probability that Lindsie will roll a 1 on her fifth roll and not before is :

P= 1

=

Simplifying it we get,

Divide by 5:

i think the correct option is the second option.

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