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Suppose you are taking a multiple-choice test with 4 choices for each question. In answering a question on this test, the probability that you know the answer is 0.33. If you don’t know the answer, you choose one at random. What is the probability that you knew the answer to a question, given that you answered it correctly
There are 13 men and 12 women in a ballroom dancing class. If 6 men and 6 women are chosen and paired off, how many pairings are possible
There are 3 arrangements of the word DAD, namely DAD, ADD, and DDA. How many arrangements are there of the word ENDURINGLY?
you cannot use built-in functions or NumPy or Pandas!
1. Write a function which finds all Pythagorean triplets of triangles whose sides are no greater than a natural number N.
2. Given a list of integers, write a function that finds the smallest and the largest value of this list. Given a list of numbers, write a function which finds their standard deviation
We have two lists. L1 = ['Coffee', 'Tea'] L2 = ['Hot', 'Ice']. Using a nested while loop compute the following output: Coffee * Hot * Ice Tea * Hot * Ice
a) Write a program which allows a student to enter a string and test for whether string is a palindrome or not. If string is a palindrome replace all characters with random numbers between 1 and 100 and displays the output, else prompt student re-enter string.
b) Write a program which allows a company secretary to write employee details in file called EmployeeHours.txt and retrieves the information using pointers to display it on the screen.
a) Write a program using functions to imitate a university canteen ticketing system. A student is required to enter their registration number and pin to access the food menu and make payments. Also a student is allowed to enter only two times a wrong pin before account is blocked.
b) Demonstrate using functions to calculate the area and perimeter as right angled triangle. Given that the perimeter of a triangle is the sum of all three sides and the hypotenuse of a triangle is obtained by sqtr((len * len)+(height * height)) where sqtr() is in a built-in function.
Create a sequence of numbers from 15 to 25 and increment by 4. What is the index of the value 19
What is h(60)-h(45), given the definition of h below?
def h(n):
s = 0
for i in range(2,n):
if n%i == 0:
s = s+i
return(s)
A company wants to transmit data over the telephone, but it is concerned that its phones may be tapped. All of its data are transmitted as four-digit integers. It has asked you to write a program that will encrypt its data so that the data may be transmitted more securely. Your script should read a four-digit integer entered by the user in a prompt dialog and encrypt it as follows: Replace each digit by (the sum of that digit plus 7) modulus 10. Then swap the first digit with the third, and swap the second digit with the fourth. Then build the script that displays the encrypted integer.
