The probability that a student passes mathematics class is 0.85, the probability that he passes history class is 0.70, and the probability that he passes mathematics and history is 0.50. are the two events independent of each other?

No

Step-by-step explanation:

To determine if two events are independent, we use the multiplication rule which states P (A and B) = P(A) * P(B).

Here P(math) = 0.85 and P(history) = 0.70. The P(math and history) = 0.50. Multiply the probabilities and see if it is the same as 0.50.

0.85*0.70 = 0.595

It is not the same so these are not independent.

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.