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Recent questions tagged probability

0 0 votes
0 0 answers
443
443 views
Which algorithm is best to detect anomalies within a data set of 5k+ user-login events?
I am trying to build an unsupervised ML model to detect anomalies within 5000+ users' login data. I selected 5 features contained within each of the user-login events (e...
0 0 votes
0 0 answers
373
373 views
Probability of a bus arrived in its destination based on weather condition
A bus is making its way to a destination. If the weather conditions are favorable today, the likelihood of delay is 3%. If the weather conditions are not favorable today,...
3 3 votes
1 answers 1 answer
7.8k
7.8k views
How to calculate the probability and accuracy of a Logistic Regression classifier?
How to solve this problem?https://i.imgur.com/8urywpf.jpgQ1) Complete the ? sectionsQ2) Accuracy of system if threshold = 0.5?Q3) Accuracy of system if threshold = 0.95?
2 2 votes
1 answers 1 answer
13.3k
13.3k views
How to calculate probability in Logistic Regression?
The dataset of pass/fail in an exam for 5 students is given in the table below. If we use Logistic Regression as the classifier and assume the model suggested by the opti...
0 0 votes
1 1 answer
608
608 views
Probability for the data items within mean +- 1, +-2, +-3 standard deviation?
2 2 votes
2 2 answers
819
819 views
What will be probability for the data items within mean +- 1, +-2, +-3 standard deviation?
1 1 vote
1 answers 1 answer
877
877 views
How do we determine if two events are independent
0 0 votes
1 answers 1 answer
525
525 views
In the context of probability, what is the "event space"
4 4 votes
1 1 answer
1.0k
1.0k views
If x is the number that comes up when you roll a 20 sided die. What is the expected value of x?
If x is the number that comes up when you roll a 20 sided die. What is the expected value of x?
1 1 vote
0 0 answers
618
618 views
What is the probability of getting a King of Hearts?
What is the probability of picking a King of Hearts in a standard 52 card deck?
2 2 votes
1 answers 1 answer
490
490 views
Two coins are flipped. What is the probability of getting heads twice?
2 2 votes
1 answers 1 answer
2.0k
2.0k views
A standard deck of 52 cards is shuffled and a single card is drawn. What is the probability that this card is a Joker
This is question 1d in the 2B exercises. The answer says the probability is 0 but I count 4 jokers in a 52 card deck, which means the probability is 1/13. Think I misunde...
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