Question

Probability knowledge check (this is math not chemistry I am looking at the tab correctly)

Answer 1

Given: The odds in favor of receiving a gift are 4/19.

Required: To determine the probability of receiving a gift.

Step-by-step explanation: The probability of an event A that has an odd of happening as A/B can be calculated as

`P(A)=(A)/(A+B)`

Here A=4 and B=19. Putting the values, we get,

`\begin{gathered} P(A)=(4)/(4+19) \\ =(4)/(23) \\ \end{gathered}`

Final Answer: The probability of Brian receiving a gift is 4/23.