a) create a dictionary, grades with three keys and assign an integer value to each key. b) use a for loop to calculate the total grades in the dictionary. d) print the average to two decimal places.

Create a program that contains a dictionary containing 20 countries as keys and their capitals as values. ( Use the Internet if needed) 4. The program is to randomly quiz the user by displaying a country's name and ask user to enter the country's capital. 5. The program is to verify user's entry , if correct , program is to congratulate user and display another countries name. Use sentinel to allow the user to exit the program if they choose to. 6. The program should keep count of the number of correct and incorrect responses and display results when user chooses to stop playing Python code

This is question 5 on the same chapter 9

The get(key) function for a dictionary will return _____ if the key does not exist. In python. A. " B. {} C. "Null" D. None 

Please in python, MUST use dictionaries This program will store roster and rating information for a soccer team. Coaches rate players during tryouts to ensure a balanced team. (1) Prompt the user to input five pairs of numbers: A player's jersey number (0 - 99) and the player's rating (1 - 9). Store the jersey numbers and the ratings in a dictionary. Output the dictionary's elements with the jersey numbers in ascending order (i.e., output the roster from smallest to largest jersey number). Hint: Dictionary keys can be stored in a sorted list. (3 pts)Ex: Enter player 1's jersey number: 84 Enter player 1's rating: 7 Enter player 2's jersey number: 23 Enter player 2's rating: 4 Enter player 3's jersey number: 4 Enter player 3's rating: 5 Enter player 4's jersey number: 30 Enter player 4's rating: 2 Enter player 5's jersey number: 66 Enter player 5's rating: 9 ROSTER Jersey number: 4, Rating: 5 Jersey number: 23, Rating: 4 Jersey number 30, Rating: 2 ... (2) Implement a menu of options for...

a) Complete the dry run table for each fragment of code.

Problem 1 print("Problem 1") Create a function named problem 1.| Create a dictionary named spring23 with the names of your classes and professors. Using a loop, print out the name of your classes and your professors. Using a loop, print the name of your classes and your professors. Source Code Terminal Output

In pyhton Using the students dictionary provided below # This dictionary provided for youstudents = {'S1' : True,'S2' : False,'S3' : True,'S4' : False,} write a for loop that loops across the dictionary and collects all subject numbers (ex. 'S2') where the dictionary value is False. Imagine, for example, the dictionary indicates whether a student has completed an assignment, and we wanted to get a list of the students who had not yet completed the assignment. To answer this question, use a for loop across the students dictionary. You then need to get the associated value in each iteration, and check if it is True. If it is True, you can use continue to skip ahead to the next iteration. Otherwise, append the subject number (i.e. 'S2') to a list called incomplete.

Write a function called count_duplicates that takes a dictionary as an argument and returns the number of values that appear two or more times.

Assume that the variable data refers to the list [5, 3, 7]. Write the expressions that perform the following tasks: a. Replace the value at position o in data with that value's negation. b. Add the value 10 to the end of data. c. Insert the value 22 at position 2 in data. d. Remove the value at position 1 in data. e. Add the values in the list newData to the end of data. f. Locate the index of the value 7 in data, safely. g. Sort the values in data.

Write a function named count_vowels that accepts a string as an argument. The function should count the number of times each vowel (the letters a, e, i, o, and u) appears in the string, and store those counts in a dictionary. When the function ends, the dictionary should have exactly 5 elements. In each element, the key will be a vowel (lowercase) and the value will be the number of times the vowel appears in the string.

This code is a part of a C dictionary. Please write the code for the below requirements. dict_get Next, you will implement: char* dict_get (const dict_t* dict, const char* key); This function goes through the list given by dict. If you use the above structure, this means starting at el = dict->head and checking each time whether the key at el is key; if it is not, we set el = el->next, until either key is found, or we reach el == NULL. To compare key with el->key, we need to compare one by one each character in key with those in el->key. Remember that strings in C are just pointers (memory addresses) to the first character in the string, so comparing el->key == key will not do what you want. So how do you even get the length of a string s? You would start at memory location s and advance as long as the byte at s (i.e. *s) is not the end-of-string marker (0,円 the NULL character). This can get a bit messy, so luckily, you are allowed to use the string comparison...

This section has been set as optional by your instructor. OBJECTIVE: Write a program in Python that prints the middle value of a dictionary's values, using test_dict from the test_data.py module. NOTE: test_dict is created & imported from the module test_data.py into main.py Example 1: test dict = {'a':1,'b':9,'c':2,'d':5} prints 5 Example 2: test_dict = {'b':9,'d':5} prints 5 Hint: You may(or may not) find the following function useful: list.sort() which sorts the elements in a list. Note: the result is automatically stored in the original list, and return value from the function is None Туре list = [1, 2,3,2,1] After calling: list = [1,1,2,2,3] list.sort(), 339336.2266020 x3zgy7 LAB 13.11.1: Middlest Value (Structured Types) АCTIVITY 0/11 File is marked as read only Current file: test_data.py 1 #This module creates the test_dict to be used in main.py 2 #Reads input values from the user & places them into test_dict 3 dict_size = int(input()) #Stores the desired size of test_dict. 4...