Answer: 0.20
Explanation:
Given : In a certain weather forecast, the chance of a thunderstorm is stated 20% chance.
To express the indicated degree of likelihood as a probability value between 0 and 1 inclusive , we need to convert 20% into decimal by dividing it by 100, we get
![20\%=\dfrca{20}{100}=0.20](https://img.qammunity.org/2020/formulas/mathematics/middle-school/d0gytsryd8s1vhgwwmgk21rxqt1apfq1aa.png)
Hence, the required answer = 0.20