2. This question practices the use of a list method. Assign to the variable grad

Question

2. This question practices the use of a list method. Assign to the variable grades a list of 10 letter grades from among "A", "B", "CD and "F" For example, grades [A', 'F', 'C', 'F', 'A', 'B', 'A','C','A", 'B,] 1 Write a Python expression that creates a list named frequency, in which the elements are the number of times each of the letters A, B, C, D and F appear in grades. For example, for the above value of grades, the following would be correct output. 1 frequency[4, 2, 2, 0, 2] Your expression must give the correct values for any list of grades, not just the one in your list. Hint: use the list method count. 3. This question practices list membership, list indexes and list slices. a. Write a Python statement that creates a list named dog breeds that contains the elements b. Write a Python statement that uses list slicing to create a list herding.dogs that is made c. Write a Python statement that uses list indexing to create a list tiny_dogs that is made up d. Write a Python statement that tests whether "Persian" is in the list dog_breeds and prints "collie", "sheepdog", "Chow", and "Chihuahua" up of the first two elements of dog.breeds. of the last element of dog.breeds. either True or False depending on the answer.

Explanation / Answer

grades=list("AFCFABACAB")

unique_grade=set(grades)

unique_grade=list(unique_grade)

unique_grade.sort()

grade_count=list()

for letter in unique_grade:

grade_count.append(grades.count(letter))

print(unique_grade)

print(grade_count)

OUTPUT:

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