Question

apartment building has the following distribution of apartments:1 bedroom2 bedroom3 bedroom1st floor3212nd floor1323rd floor141If an apartment is selected at random, what is the probability that it is on the 2nd floor or has 2 bedrooms?

Answer 1

Given

`\text{Probability}=\frac{possible\text{ outcome }}{\text{Total }outcome}`

The total outcome is 3+1+1+1+3+4+1+2+1=17

All 2nd floor apartment 1+3+2 =6

All apartment with 2 bedroom = 1+3+4=8

`\begin{gathered} \text{Probability selecting an apartment in }2ndfloor\text{ or has 2bedroom =}(6)/(17)+(8)/(17) \\ \text{Probability selecting an apartment in }2ndfloor\text{ or has 2bedroom }=(14)/(17) \\ \text{Probability selecting an apartment in }2ndfloor\text{ or has 2bedroom }=0.82352941176 \end{gathered}`

The final answer

`\text{Probability selecting an apartment in }2ndfloor\text{ or has 2bedroom}=0.82352941176`