Part 01  What is Statistics ?
Quizsummary
0 of 7 questions completed
Questions:
 1
 2
 3
 4
 5
 6
 7
Information
You must fill out this field. 

You must fill out this field. 

You must fill out this field. 

You must fill out this field. 

You must specify an email address. 

You must fill out this field. 
You are advised to watch the E01 video but it is not necessary. Read the following statement and try to answer the following questions.
“Let’s say that you have a small farm and you want to plant some tomatoes, potatoes, and carrots. In the beggining, you know that it will be a little hard to succeed to grow them. Type of fertilizers, insects, levels of humidity and other plantenemy animals can destroy your little farm! Also, the weather can be against your plans: much raining or not at all, much sun or not at all. Therefore, you decided to read articles about farming and planting. Some of them refer some not very understandable statistical figures and numbers to you. Here is your chance to learn about what is statistic!”
*Note that in the end you will be asked to give some general information about you e.g. Gender, age (ranges). These information will be used only for general statistics.
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 7 questions answered correctly
Time has elapsed
You have reached 0 of 0 points, (0)
Average score 

Your score 

Categories
 Not categorized 0%

These are your results!
 1
 2
 3
 4
 5
 6
 7
 Answered
 Review

Question 1 of 7
1. Question
What is statistics? When you have finished to read various articles about farming and planting, you decided to take some carrot seeds from a friend of yours and you plant them into your farm. You believe that statistics can help you to…
Correct
Statistics have to do with possibilities and prediction. Statistics cannot tell you exactly something very specific. The prediction of statistical numbers get better and better as you feed it with data and relevant variables.
Incorrect
Statistics have to do with possibilities and prediction. Statistics cannot tell you exactly something very specific. The prediction of statistical numbers get better and better as you feed it with data and relevant variables.

Question 2 of 7
2. Question
About the question: “Which election party you will support?” which is followed by this result/sentence: “60% claimed that will support the A election party while 45% the B election party, and another 30% said that are undecided yet”, What happens here?
Correct
Results may had formed in that way: “90% claimed that will support the A election party while 90% the B election party, and another 20% said that is undecided yet”. Even if this question is a multiple choise, it will be hard for a undecided person to claim in the same time that will support a spoecific election party. This sentece will be more understandable and clear if it was said that the question made was a multiple choice as well as if the number of people that choose each option, as well the total number of people that choose more than one option: “the 505 of the sample said that will support both A and B election parties.”
Incorrect
Results may had formed in that way: “90% claimed that will support the A election party while 90% the B election party, and another 20% said that is undecided yet”. Even if this question is a multiple choise, it will be hard for a undecided person to claim in the same time that will support a spoecific election party. This sentece will be more understandable and clear if it was said that the question made was a multiple choice as well as if the number of people that choose each option, as well the total number of people that choose more than one option: “the 505 of the sample said that will support both A and B election parties.”

Question 3 of 7
3. Question
You try to decide what to do: To plant 20 carrot seeds in (a) 20 places or in (b) 200 places into your farm. You want to calculate how much carrots were fully grown per place in your farm. Based on these results, you want to understand how many carrots you can produce again if exactly the same number of seeds (20) and places you will use: (a) 20 places or (b) 200 places. What do you believe that it is the best to use as measures of central tendency? The mean (average) or the median in order to be nearest to the true result in each occasion?
Correct
Example: if you used 5 places to plant your seeds, then you may get these results about fully grown carrots: 5, 10, 10, 5, 5 per farming place. Mean (Mn): You add these numbers: 5+10+10+5+5=35 and then you divide them by “5”, as the size of this sample. So you get “7 by this division: 35/5=7. Median (Md): You must place these numbers from the lowest one to the highest one: 5, 5, 5, 10, 10. The middle number in this queue is the number “5”. The success of 70% (Md=7) is not so realistic as the success of 50% (Md=5). The latter one (“5″) is more realistic in this case.
Incorrect
Example: if you used 5 places to plant your seeds, then you may get these results about fully grown carrots: 5, 10, 10, 5, 5 per farming place. Mean (Mn): You add these numbers: 5+10+10+5+5=35 and then you divide them by “5”, as the size of this sample. So you get “7 by this division: 35/5=7. Median (Md): You must place these numbers from the lowest one to the highest one: 5, 5, 5, 10, 10. The middle number in this queue is the number “5”. The success of 70% (Md=7) is not so realistic as the success of 50% (Md=5). The latter one (“5″) is more realistic in this case.
Hint
*Mean: You add the data/numbers you have and then you divide them by the size of their sample.
*Median: You arrange the numbers from the lowest value to the highest one. The middle number in the median. 
Question 4 of 7
4. Question
Your friend and neighborhood that you gave you the carrot seeds, is coming to find you and he/she wants to tell you that no seed has grown! So, he had 0% success about growing carrots. Statistically, do you also expect to get a 0% success in growing your seeds into carrots? Don’t they (statistics)?
Correct
Statistically, you are expecting to get 0% success (these seeds were no good ones) or that you must now have higher expectations than before. This happens because statistics tell you that when a rare event happen such as “0% or 100% success of growing carrot seeds”, it can increase the possibilities this rare event not be faced again (soon). That is, an earthquake of 7 size does not happen everyday in a country. To sum up, statistics cannot tell you the full story, you must ask other farmers too that used the same type carrot seed in order to find out your possibilities of success.
Incorrect
Statistically, you are expecting to get 0% success (these seeds were no good ones) or that you must now have higher expectations than before. This happens because statistics tell you that when a rare event happen such as “0% or 100% success of growing carrot seeds”, it can increase the possibilities this rare event not be faced again (soon). That is, an earthquake of 7 size does not happen everyday in a country. To sum up, statistics cannot tell you the full story, you must ask other farmers too that used the same type carrot seed in order to find out your possibilities of success.
Hint
Statistics need a framework. Under this specific framework can be interpreted. Therefore, can this story be not the whole truth?

Question 5 of 7
5. Question
If 5 poeople told you that “statistics do not lie ever!”, you are expecting that:
Correct
The exitpoll for the elections can used a very specific sample or it may not included some regions or the final results were so near that when you take into consideration the statistical error that every poll has, then the poll was not a failure. The science about the weather forecast can predict with a high success many weather phenomenon. Statistics can predict with a great success many weather events.
Incorrect
The exitpoll for the elections can used a very specific sample or it may not included some regions or the final results were so near that when you take into consideration the statistical error that every poll has, then the poll was not a failure. The science about the weather forecast can predict with a high success many weather phenomenon. Statistics can predict with a great success many weather events.
Hint
It is not the same to say “I am eating a lot and I am not getting fat” than to say “I am eating a lot but I do running too daily”

Question 6 of 7
6. Question
“There are three types of lies: Lies, damn lies, and statistics” (Mark Twain). How much truth do you believe that this sentence/quote has? Five (5) neighborhood farmers told you that 55% of the carrot seeds they planted, were fully grown. However, you had only 30 carrot seeds were fully grown from the 100 ones that you planted. Do statistics lies? You must move the biggest LIE in the top (move it by grabbing one tile) and the smallest LIE in the end of this pile. So, the most true sentence/tile about statistics must be at the end of this pile.

Statistics are not wrongful because of my ignorance of them!

These farmers may had a better knowledge/experience with planting than me!

These farmers may had other carrot seeds than i had.

The average number (mean) cannot be true because of the small number of farmers.
Correct
Incorrect
Hint
You must think logically. You must “proceed” from the “general” to the “specific” lie. It is different to say that you like to eat fruits (general) than to say that you like to eat oranges (specific)


Question 7 of 7
7. Question
Today, I broke up with my girlfriend. How statistics can help me to be together again?
Correct
It cannot! Here, a quality analysis must be done, that is, it is a case study! Statistics can fill you with many information and thus to make you understand how things work in many cases and therefore to enrich your mind. However, statistics cannot fix a break up!
Incorrect
It cannot! Here, a quality analysis must be done, that is, it is a case study! Statistics can fill you with many information and thus to make you understand how things work in many cases and therefore to enrich your mind. However, statistics cannot fix a break up!
Hint
Think! Decide! Act!