1. Write a program that displays a rank in the defined dictionary. Save it as searchRank.py. a) create a dictionary, rank = {1:"Freshman", 2:"Sophmore", 3:"Junior", 4:"Senior" } b) request a user input for a number of years. c) print the value of the matching key in the dictionary. d) print the error message if input is invalid. Output Example 1: Enter the # of years in the school (1-4): 1 Year 1 = Freshman Output Example 2: Enter the # of years in the school (1-4): 11 Invalid years. 2. Write a program that calculates the average in the defined dictionary. Save it as AvgDict.py. 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.

1. Write a program that displays a rank in the defined dictionary. Save it as searchRank.py. a) create a dictionary, rank = {1:"Freshman", 2:"Sophmore", 3:"Junior", 4:"Senior" } b) request a user input for a number of years. c) print the value of the matching key in the dictionary. d) print the error message if input is invalid. Output Example 1: Enter the # of years in the school (1-4): 1 Year 1 = Freshman Output Example 2: Enter the # of years in the school (1-4): 11 Invalid years. 2. Write a program that calculates the average in the defined dictionary. Save it as AvgDict.py. 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.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

need help with python code. can you please keep it simple, I mean can you not use high-level python codes to answer this.

1. **Write a Program that Displays a Rank in the Defined Dictionary. Save it as `searchRank.py`.**

a) Create a dictionary, `rank = {1:"Freshman", 2:"Sophomore", 3:"Junior", 4:"Senior"}`

b) Request a user input for a number of years.

c) Print the value of the matching key in the dictionary.

d) Print the error message if input is invalid.

**Output Example 1:**

```
Enter the # of years in the school (1–4): 1
Year 1 = Freshman
```

**Output Example 2:**

```
Enter the # of years in the school (1–4): 11
Invalid years.
```

2. **Write a Program that Calculates the Average in the Defined Dictionary. Save it as `AvgDict.py`.**

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.

c) Print the average to two decimal places.

**Output Example:**

```
{'Exam 1': 85, 'Exam 2': 99, 'Exam 3': 100}
Average = 94.67
```

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