Create and implement class Stats to compute mean and standard deviation of a set of numbers entered from the use.) Displays a menu to the user to enter Q/q to quit, or Y/y to start entering numbers.If the user types Y/y prompt the user to start entering numbers or -1 to stop entering numbers.Special cases to handle:1: Handle the case the user enters invalid input instead of Q/q, Y/y as shown below.2: Handle the case that the user selects Y/y and then immediately types -1( i.e. No numbers entered).3. Handle the case that the numbers entered is just one number . Then the standard deviation is zero. ### Program Output for Calculating StatisticsThis console output demonstrates a program for calculating basic statistical measures. The program allows users to input a series of numbers and computes the mean and standard deviation. Below is the detailed transcription of the program output:```run:Q/q: to quit or Y/y to start a new series of STATS: lafayette??????> Invalid character!Q/q: to quit or Y/y to start a new series of STATS: y====> Enter a number or -1 to stop entering numbers: -1??????> You entered no numbers!Q/q: to quit or Y/y to start a new series of STATS: y====> Enter a number or -1 to stop entering numbers: 33====> Enter a number or -1 to stop entering numbers: -1+++=> The mean is 33.0+++=> The standard deviation is 0.0Q/q: to quit or Y/y to start a new series of STATS: y====> Enter a number or -1 to stop entering numbers: 2====> Enter a number or -1 to stop entering numbers: 3.7====> Enter a number or -1 to stop entering numbers: 11====> Enter a number or -1 to stop entering numbers: -1+++=> The mean is 5.566666666666666+++=> The standard deviation is 4.781561809004809Q/q: to quit or Y/y to start a new series of STATS: q+++=> Goodbye!BUILD SUCCESSFUL (total time: 1 minute 21 seconds)```### Explanation- **User Input:** - The user is prompted with options to quit or start a new series of statistics calculations. - Invalid characters are flagged by the program (e.g., entering "lafayette" returns "Invalid character!").- **Number Entry:** - Users enter numbers one by one. - The input of `-1` signals the end of the current data entry session for calculations.- **Output:** - After numbers are entered, the program calculates and displays the mean and standard deviation of the numbers. - Example calculations: - For the input sequence `[33]`, the mean is `33.0` and the standard deviation is `0.0`. - For the input sequence `[

Answered: reate and implement class Stats to…

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

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Create and implement class Stats to compute mean and standard deviation of a set of numbers
entered from the use.) Displays a menu to the user to enter Q/q to quit, or Y/y to start entering numbers.
If the user types Y/y prompt the user to start entering numbers or -1 to stop entering numbers.

Special cases to handle:
1: Handle the case the user enters invalid input instead of Q/q, Y/y as shown below.
2: Handle the case that the user selects Y/y and then immediately types -1( i.e. No numbers entered).
3. Handle the case that the numbers entered is just one number . Then the standard deviation is zero.

### Program Output for Calculating Statistics

This console output demonstrates a program for calculating basic statistical measures. The program allows users to input a series of numbers and computes the mean and standard deviation. Below is the detailed transcription of the program output:

```
run:

Q/q: to quit or Y/y to start a new series of STATS: lafayette
??????> Invalid character!

Q/q: to quit or Y/y to start a new series of STATS: y
====> Enter a number or -1 to stop entering numbers: -1
??????> You entered no numbers!

Q/q: to quit or Y/y to start a new series of STATS: y
====> Enter a number or -1 to stop entering numbers: 33
====> Enter a number or -1 to stop entering numbers: -1

+++=> The mean is 33.0
+++=> The standard deviation is 0.0

Q/q: to quit or Y/y to start a new series of STATS: y
====> Enter a number or -1 to stop entering numbers: 2
====> Enter a number or -1 to stop entering numbers: 3.7
====> Enter a number or -1 to stop entering numbers: 11
====> Enter a number or -1 to stop entering numbers: -1

+++=> The mean is 5.566666666666666
+++=> The standard deviation is 4.781561809004809

Q/q: to quit or Y/y to start a new series of STATS: q
+++=> Goodbye!

BUILD SUCCESSFUL (total time: 1 minute 21 seconds)
```

### Explanation

- **User Input:**
- The user is prompted with options to quit or start a new series of statistics calculations.
- Invalid characters are flagged by the program (e.g., entering "lafayette" returns "Invalid character!").

- **Number Entry:**
- Users enter numbers one by one.
- The input of `-1` signals the end of the current data entry session for calculations.

- **Output:**
- After numbers are entered, the program calculates and displays the mean and standard deviation of the numbers.
- Example calculations:
- For the input sequence `[33]`, the mean is `33.0` and the standard deviation is `0.0`.
- For the input sequence `[

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