Given “A and B,” where A and B are either true (non-zero) or false (0), “and” is multiplication. For example, the truth of “it's raining and I'm wearing a red shirt and …” is multiplicative: I have to evaluate all the inputs to find if the statement is true. Given “A or B,” we get addition.
Does and mean add or multiply in probability?
Roughly speaking (not always 100% true!), in probability, the word or translates into addition, while and translates into multiplication. The added assumptions are: you can only add if the two events are disjoint. you can only multiply if the two events are independent.
What does and and/or mean in math?
In mathematics, the word “or” means “one or the other or both”. Therefore in logic, “or” includes the case when both atomic parts of the state are true. In other words, the statement is only false if “it will rain” is false and “it will snow” is also false.18 Mar 2013
Does and mean multiply or add?
Because 'and' & 'or' correspond respectively to the intersection & union of the relevant event spaces and accordingly the probabilities are multiplied or added. , B.E Computer Science & Computer Engineering, Indian Institute of Engineering Science and Technology, Shibpur … And does not mean multiply.
What words mean to add and subtract?
Addition-sum, altogether, all, in all, together, total, total number, add, increase, increased by, more than. Subtraction-minus, greater than, take away, fewer than, less than, subtract, decreased by.
Does and mean addition?
“OR” means that you are calculating the probability that either event A alone, event B alone or both events A and B occurred. “AND” means that both events A and B have to occur. FOr example, suppose that there are three coins, a penny, a dime and a quarter.
What does and mean in math?
Originally Answered: What does the word “and” mean in mathematics? I was always taught that it meant either: Additive. A and B equals C. Meaning A + B = C.
What does and/or mean in math?
In mathematics, the word “or” means “one or the other or both”.18 Mar 2013
What is the difference between Given and and in probability?
“OR” means that you are calculating the probability that either event A alone, event B alone or both events A and B occurred. “AND” means that both events A and B have to occur.