# how long will it take to roll a pair of ones

*label*Other

*timer*Asked: Oct 28th, 2017

*account_balance_wallet*$5

**Question description**

a) how long will it take to roll a pair of ones

b) What is the probability of rolling a sum of 7 on the first roll

c) what is the probability of rolling a sum of 7 on the fourth roll

d) What is the probability of rolling a sum of 7 by the fourth roll

e) what is the probability of it taking more than 10 rolls to roll the sum of 7

## Tutor Answer

Attached.

Probability

Name

Institutional Affiliation

Date

a) How long will it take to roll a pair of ones?

P (particular outcome) = 1/6

a) P(1,1)= 1/6x1/6 = 1/36

it takes 36 throws to roll a pair ...

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