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## Excel CA

There is a 15% Excel Test in Week 12 in the usual lab times and venues:

- IT1-A , Thursday 12:00 in C128
- IT1-B, Wednesday at 16:00 in C125

I recommend that you come as early as possible and get your machine started up.

In the lab itself, I will hand you out a Test A or a Test B — and email you an Excel file that you can use as a template.

Here is the Sample Test including the Excel template.

Here is a scanned copy of the solutions and here is the Excel file used to support the solutions.

Labs 1 & 2 are here and here (data). The other lab is here.

This is an open book assessment — and any information which you can access on your workstation you are free to use — but you must not look at your neighbour’s work.

## Student Feedback

If you would like to submit anonymous feedback on this module/lecturer, you may take the do so here. This link will be open until May 12.

## Week 11

On Wednesday we worked on binomial and Poisson Distribution exercises. On Thursday we started talking about the normal distribution.

## Week 12 — Excel Test

We will work on the normal distribution.

## Week 13 — Revision

There is an exam paper at the back of your notes — I will go through this on the board in the lecture times in the normal rooms.

We will also have tutorial time in the tutorial slots. You can come to any or both tutorials. Again in the normal (computer lab) rooms.

## Excel CA

There is a 15% Excel Test in Week 12 in the usual lab times and venues.

Here is the Sample including Excel. Here is a scanned copy of the solutions and here is the Excel file used to support the solutions.

Labs 1 & 2 are here and here (data).

## Student Feedback

If you would like to submit anonymous feedback on this module/lecturer, you may take the do so here. This link will be open until May 12.

## Week 10

We looked at the binomial distribution and the Poisson distribution.

## Week 11 — Excel Week

On Wednesday you will work on binomial and Poisson Distribution exercises. On Thursday we will start talking about the normal distribution.

## Week 12 — Excel Test

We will work on the normal distribution.

## Week 13 — Revision

There is an exam paper at the back of your notes — I will go through this on the board in the lecture times in the normal rooms.

We will also have tutorial time in the tutorial slots. You can come to any or both tutorials. Again in the normal (computer lab) rooms.

## Excel CA

There is a 15% Excel Test in Week 12 in the usual lab times and venues. More information soon.

Here is the Sample (a hard copy of this will be handed out in class) including Excel. Here is a scanned copy of the solutions and here is the Excel file used to support the solutions.

Labs 1 & 2 are here and here (data).

## Week 9

We looked at Tree Diagrams.

## Week 10 — Tutorial Week

We will look a the binomial distribution and start looking at the Poisson distribution. You will also receive a sample Excel Test.

## Week 11 — Excel Week

On Wednesday you will work on binomial and Poisson Distribution exercises. On Thursday we will start talking about the normal distribution.

## Week 12 — Excel Test

We will work on the normal distribution.

## Week 13 — Revision

There is an exam paper at the back of your notes — I will go through this on the board in the lecture times in the normal rooms.

We will also have tutorial time in the tutorial slots. You can come to any or both tutorials. Again in the normal (computer lab) rooms.

**I am emailing a link of this to everyone on the class list every week. If you are not receiving these emails or want to have them sent to another email address feel free to email me at jpmccarthymaths@gmail.com and I will add you to the mailing list.**

## Excel CA

If you have missed Excel labs, you should get the lab off me in the lecture and complete it in your own time. There is a 15% Excel Test in Week 12.

## Week 8

We looked at conditional probability.

## Week 9

We will continue this work by looking at Tree Diagrams.

**I am emailing a link of this to everyone on the class list every week. If you are not receiving these emails or want to have them sent to another email address feel free to email me at jpmccarthymaths@gmail.com and I will add you to the mailing list.**

## Test Results

… soon.

If you missed the test with good reason (i.e. grounds (a)-(e) here) please email me.

## Excel CA

If you have missed Excel labs, you should get the lab off me in the lecture and complete it in your own time. There is a 15% Excel Test in Week 12.

## Week 7

We looked at expected average (of random variables) and independence & mutual exclusivity (of outcomes/events).

## Week 8 and Beyond

We will continue this work.

**I am emailing a link of this to everyone on the class list every week. If you are not receiving these emails or want to have them sent to another email address feel free to email me at jpmccarthymaths@gmail.com and I will add you to the mailing list.**

## Test

The Test will take place in **IT2 **at 10:00 this Wednesday 16 March. After the test we will have a class as normal from 11:15-12:00.

The Test will take a Q.1 from a past exam paper and a Q.2 from a past exam paper. You will also be given the following stats tables.

The relevant exam papers are:

To revise properly you need the manual and graph paper.

If you have missed Excel labs, you should get the lab off me in the lecture and complete it in your own time. There is a 15% Excel Test in Week 12.

## Week 6

We started Chapter 2: Probability.

## Week 7 and Beyond

We will continue this work.

## Test

The Test will take place in **IT2 **at 10:00 on Wednesday 16 March. After the test we will have a class as normal from 11:15-12:00.

The Test will take a Q.1 from a past exam paper and a Q.2 from a past exam paper. You will also be given the following stats tables.

The relevant exam papers are:

To revise properly you need the manual and graph paper.

## Week 5

I gave you some time to work on the Chapter 1 material.

## Week 6

We will start Chapter 2 on Probability.

Our tutorial will be finishing off the previous Excel lab.

## Attendance

Just in case you haven’t heard: if you don’t come to class, you are almost certainly going to fail this module. You are in your second semester now.

If you want you can learn this lesson for yourself. However if you trust me you will come to class.

## Manuals, Graph Paper and Excel Labs

The manual and graph paper must be purchased immediately.

If you have missed Excel labs (we have an Excel lab in odd-numbered weeks), you should get the lab off me in the lecture and do it on your own. There is a 15% Excel Test in Week 12.

## Week 4

We did three full exam questions… there was an issue with the formula for the mode which I will hope to sort out quite soon.

## Week 5

I will give you some time to work on the Chapter 1 material so that you will be very well prepared for your test in Week 7.

Our Excel lab will be working out how to handle frequency distributions in Excel.

## Manuals

The manuals are available in the Copy Centre and must be purchased immediately. They are prices at €7.50. You also need to purchase graph paper.

If you have missed Excel labs (we have an Excel lab in odd-numbered weeks), you should get the lab off me in the lecture and do it on your own. There is a 15% Excel Test in Week 12.

## Week 3

We had a fully-blown Excel lab. We will also learnt how to find mode — both graphically (using a histogram) and with a formula — of a frequency distribution. We will learn how to find the standard deviation, the Interquartile Range (graphically and with a formula), the coefficient of variation and the skewness.

We did one full exam question.

## Week 4 and Beyond

We will then do three more full exam questions and then spend a lot of time letting you work on this material so that you will be very well prepared for your test in Week 7.

TL;DR: The margin of error gets smaller with the proportion: the given margin of error is most relevant the closer to 50% the support.

*Warning: I am taking the polls to be of the form*

Will you vote for party X: yes or no?

There is more than a little confusion about the margin of error in political polling amongst the Irish political commentators.

Polls frequently come with margins of error such as “3%” and if a small party polls less than this some people comment that the real support could be zero.

In this piece, I will present a new way of interpreting low poll numbers, show how it is derived, further explain where the approximate 3% figure comes from and show what the calculation should be for mid-ranking proportions.

The main point is that none of these margins of error are accurate for small proportions.

For those who don’t like the mathematics of it all I will explain in a softer way why polling at 1-2% is very unlikely when your true support is 0.5%.

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