Final answer:
To assign the character 't' to the variable middleinitial in Python, the statement is written as: middleinitial = 't'. Syntax may vary in different programming languages.
Step-by-step explanation:
To assign the character 't' to the variable middleinitial, you need to write a statement in a programming language. For example, in Python, the statement would be written as follows:
middleinitial = 't'
This line of code creates the variable middleinitial and assigns it the value 't', which is a character type in many programming languages. Remember, the exact syntax can vary slightly depending on the programming language you are using. Always ensure to follow correct syntax rules for the language you're working with.