Question

A child has a box of colored building blocks. He will choose one block without looking. The odds against choosing a blue block are 13/4. What is the probability of choosing a blue block?

Answer 1

The answer is "0.2352".

Explanation:

Given:

The chance of selecting a odds blue block
`= (13)/(4)`

`=\frac{\text{Amount of unfavourable blue block evets} \ (13)}{\text{Amount of unfavourable blue block evets} \ (4)}`

total number of events are 13+4= 17

Calculating the probability of choosing the blue block

`=\frac{\text{Amount of unfavourable blue block evets} }{\text{Amount of unfavourable blue block evets} } \\\\ = (4)/(17) \\\\ =0.2352`