Which expression is most appropriate for randomly choosing a day of the week?Group of answer choicesrand() % 6;rand() % 7;rand() % 1;rand() % 8;
Question
Which expression is most appropriate for randomly choosing a day of the week?Group of answer choicesrand() % 6;rand() % 7;rand() % 1;rand() % 8;
Solution
The most appropriate expression for randomly choosing a day of the week is rand() % 7;.
Here's why:
- In programming, the
rand()function generates a random number. - The
%operator is the modulus operator, which returns the remainder of a division operation. - There are 7 days in a week, so if we want a number between 0 and 6 (which gives us 7 possible outcomes), we use
% 7. This will give us a random number in the range of 0 to 6. - Each number can represent a day of the week. For example, 0 for Sunday, 1 for Monday, and so on up to 6 for Saturday.
So, rand() % 7; is the correct choice.
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