Insert numerical values only, please.How many different passwords of exactly 6 characters can we have if a character can be:any of the 26 English uppercase letters any of the 26 English lowercase lettersNumerical

Log in for full answers

We've collected over 50,000 authentic original questions and detailed explanations from around the globe. Log in now and get instant access to the answers!

Similar Questions

{a,b}k is set of all strings of length k

Consider a version of the Lucky Strike problem where there are 4 types of oil (Oil A, Oil B, Oil C, and Oil D) as well as 5 different products (Regular, Plus, Ultra, Superior, and Pure Gold). Assuming all inputs can be used in all products, how many variables will this model have?

Let's say we have 10 possibly good predictor variables and one Y variable. We want to make a model for each possible combination of predictors (for example, there would be ten models of just each predictor variable alone, with an intercept). This way, we can see what the best combination of variables is. How many models would we have to create to create every possible model? 

Question text A restaurant offers 3 appetizers, 4 mains, and 2 desserts. Student 1:"I was asked to find how many meals include 1 appetizer and 1 dessert. I did C(3,1) × C(2,1) = 6."Answer 1 Question 44[select: , The student is correct; the multiplicative principle was used properly and the total is 6., The student is incorrect; combinations are not valid here and the correct value is 5., The student is incorrect; additive principle should have been used and the total is 3.] Student 2:"I was asked to find how many full 3-course meals can be made. I did 3 + 4 + 2 = 9."Answer 2 Question 44[select: , The student is correct; additive method is valid here and 9 is the total., The student is incorrect; multiplicative principle should have been used. The correct value is 24., The student is incorrect; permutations should have been used and the result is 720.] Student 3:"I was asked to find how many meals include 1 main or 1 dessert. I added: 4 + 2 = 6."Answer 3 Question 44[select: , The student is correct; additive principle applies, and the result is 6., The student is incorrect; the meals should be multiplied. The correct value is 8., The student is incorrect; overlap must be subtracted and the correct value is 5.]

More Practical Tools for Students Powered by AI Study Helper

Join us and instantly unlock extensive past papers & exclusive solutions to get a head start on your studies!