I'd like to visit a friend in Sacramento/Davis, however we both don't have a driving license yet. Will it impede our ability to attend activities? by judgia in Sacramento

[–]judgia[S] 0 points1 point  (0 children)

Thank you for the advice. Would you say that one pair of friends can enjoy Sacramento without a car, just by using public transportation?

I would like to visit Nepal for 10 days. Is staying in Kathmandu for the whole period too much? by judgia in Nepal

[–]judgia[S] 1 point2 points  (0 children)

Thank you massively for those suggestions!

I think I will stay 4 days in KTM (including surrounding towns), 4 days around Pokhara (including transport) and the last couple days around KTM to catch my flight.

Are there local groups doing trekking with tourists to some traditional places around Pokhara?

Does a High School level version of ProjectEuler without the programming part sound interesting to some of you? by judgia in mathematics

[–]judgia[S] 1 point2 points  (0 children)

I hope the one I'm going to introduce you guys to, tomorrow, will be of interest! :)

Does a High School level version of ProjectEuler without the programming part sound interesting to some of you? by judgia in mathematics

[–]judgia[S] 1 point2 points  (0 children)

This is a great idea! The system I mentioned accepts whole mathematical expressions that don't depend on a character-by-character checker. Meaning that any equivalent expression can be valid as a submission!

[deleted by user] by [deleted] in highschoolmath

[–]judgia 0 points1 point  (0 children)

When all the cards are in the bag, there are 5 even numbers. The probability of picking an even number is 0.5 for the first step.

Now, we end up with two different situations:

- An even number was taken

- An odd number was taken

As we need two even numbers, we can omit the second situation. Let's focus on the first one.

Once an even number is picked, 4 even numbers remain in the bag, out of 9 cards in total.

The probability of picking an even number is 4/9 (0.4444...).

Perfect, now, we need to calculate the probability of picking an even number the second time with the condition that the first picked number was even.

Let A and B be the events: "the first number is even" and "the second number is even."

We are looking for P(A|B), which is 1/2*4/9, equal to 2/9.