Go to Chiff .Chaff.
- Add a comment
- Go to (No subject)
Re: Re: Yes it is.
posted by
Sherri_G
on June 15, 2020 at 11:40 AM
| link to this | reply
Re: shamasehar
Thank you , it is heartening one day and depressing the next.
posted by
C_C_T
on June 11, 2020 at 11:16 AM
| link to this | reply
Re: Re: Oh no. I have heard that the numbers are up again. Very scary.
Oh, so sorry. I misunderstood. Last I heard, it was twenty states. This is thye worst year ever.
posted by
Sherri_G
on June 11, 2020 at 11:05 AM
| link to this | reply
It's sad to read that deaths due to the virus are on a rise again ...what a helpless situation 😔
Enjoyed the poem.
posted by
shamasehar
on June 11, 2020 at 10:06 AM
| link to this | reply
Re: Re: adnohr
So sorry to hear that CCT. We have had our share among friends too, losing those we love to this virus.
posted by
adnohr
on June 9, 2020 at 2:09 PM
| link to this | reply
All of the demonstrations in our cities need to cease!
We've had increases of COVID 19 in several states where it had dropped way off...
California, Utah, Arizona, North Carolina, Florida, Arkansas and Texas, among others, have all logged rises in confirmed cases, according to a Johns Hopkins tabulation of a five-day moving average.
The demonstrations must cease!
posted by
Corbin_Dallas
on June 9, 2020 at 12:27 PM
| link to this | reply
Re: Taps
Bless you, I have tried to explain I was talking about the virus. Nice to read you any time. Keep safe.Â
posted by
C_C_T
on June 9, 2020 at 11:25 AM
| link to this | reply
Re: I don't know that saying either - as TAPS said. But I think you have
Pat I was trying not to be dramatic 50 deathes reported from the virus, but not so good today. One just hopes.
posted by
C_C_T
on June 9, 2020 at 11:22 AM
| link to this | reply
Re: adnohr
It was the deaths from the virus ,sadly many many, more yesterday.
posted by
C_C_T
on June 9, 2020 at 11:19 AM
| link to this | reply
Re: Now explain it to me......
I think mine is a flat line Corbin. My brother is a Doc of philosophy and a Mensa man he would know, but he is playing a computer game at the moment. I left school to help out during the war.
Â
posted by
C_C_T
on June 9, 2020 at 11:18 AM
| link to this | reply
Re: FS
Thank you FS. I cannot remember the line, time tells.
posted by
C_C_T
on June 9, 2020 at 11:10 AM
| link to this | reply
Re:
Sorry Corbin I was remarking on the virus casualties. As I told sassy the news today is grim again. I do tend to make up words, my most famous asking a US soldier who was pushing a pram if he was taking the baby out for an airing. It was not used here,but I think .......>Â
posted by
C_C_T
on June 9, 2020 at 11:09 AM
| link to this | reply
Re: Not a clue about those stats and curves, but I enjoyed your poem.
I was speaking of the virus victims sassy, sadly the count is very high today. One man's meat.
posted by
C_C_T
on June 9, 2020 at 11:04 AM
| link to this | reply
Not a clue about those stats and curves, but I enjoyed your poem.
The pickled shallots would be a great summer treat too.
posted by
Sherri_G
on June 9, 2020 at 10:30 AM
| link to this | reply
Re:
posted by
Sherri_G
on June 9, 2020 at 10:29 AM
| link to this | reply
You need to speak English! 
posted by
Corbin_Dallas
on June 9, 2020 at 5:49 AM
| link to this | reply
The request at the end really strikes me. Clever.
posted by
FormerStudentIntern
on June 9, 2020 at 5:46 AM
| link to this | reply
I'm still lost...
posted by
Corbin_Dallas
on June 9, 2020 at 5:25 AM
| link to this | reply
You should not care about stats. I would hope Blogit is above that. And I enjoyed your poem.Â
posted by
Sea_Gypsy
on June 8, 2020 at 10:24 PM
| link to this | reply
Re: Now explain it to me......
Thanks, Corbin. I enjoyed it. A refresher.Â
posted by
Sea_Gypsy
on June 8, 2020 at 10:22 PM
| link to this | reply
Now explain it to me......
A Brief Note about Grade Statistics
or
How the Curve is Computed [A whole lot more than you want to know about how grade curves are made.]
This page describes what the statistics of the exam scores mean, and describes in slightly technical detail how I compute my grade curve.
What do the overall exam statistics mean? For the purposes of this discussion, I will present an actual grade curve from a 50-question exam given in Astronomy 162 in 2001.
For each exam, I create a grade curve; a plot of the number of students who got each possible score (in this example between 0 and 50 points). The plot is in the form of a histogram or bar plot.
From this data, I compute the mean score, the median score, and the "spread" (or standard deviation) of scores. These are reported in the first part of each exam result report like this:
- Statistics [Raw (Percent out of 50)]:
- Mean: 34.09 (68.18%)
- Median: 35 (70%)
- Spread: 7.96 (15.92%)
What do each of these numbers mean?- The Mean
Â
- The Mean of the curve is the average (the "arithmetic mean") of the all of the exam scores. It is computed by adding up the scores for all of the students and dividing by the number of students. In the example above, the average score was 34.09 questions out of 50 correct, or 69.18%. This is pretty good, compared to the expected score of 66% (my typical goal in composing an exam is 66% for the target mean assuming a traditional C+ curve).
- The "Spread"
- The Spreadin the curve is a measurement of the distribution of scores above and below the mean. In simple terms, it is the characteristic width of the grade curve, defined mathematically as the "standard deviation" of the scores.
A large spread in a grade curve means that the scores were spread over a large range, making the curve wide and shallow. A large "tail" of low scores will also result in a larger spread in scores. A tall, narrow curve (small spread) means most people scored pretty close to the mean grade.
In the above example, the spread is 7.96 questions (15.9%), meaning a fairly normal grade curve (not too narrow, not too broad).
- The Median
- The Medianis the score that divides the grade curve down the middle (think about the so-called "median-line" in the road: the line painted down the middle). Half of the students score at or above the median, and the other half at or below the mean.
In the example above, the median was 35 correct out of 50 (or 70%), This means that half of the students scored a 35 or higher (and the other half score less than 35). For those of you who are familiar with "percentiles" (like on the SAT) the median gives the 50th-percentile score.
The median is another way of judging the class performance, since the arithmetic mean can be skewed slightly by having a number of very high or very low scores. If the curve has a long tail towards lower scores, as it the case here, then the median is a better measure of class performance than the mean. If the curve is a symmetric bell curve, the mean and median are the same.
In this example, the grade distribution curve is slightly lopsided towards low scores. This is why the median (35) is larger than the mean (34.09) by a little bit. The more lopsided a curve is (on either side), the greater the difference between the median and mean.
Â
Â
posted by
Corbin_Dallas
on June 8, 2020 at 2:48 PM
| link to this | reply
I'd be the third wondering what 'down to the 50 mark' means? Cute poem for someone who didn't feel to up to it.Â
posted by
adnohr
on June 8, 2020 at 2:35 PM
| link to this | reply
I don't know that saying either - as TAPS said. But I think you have
a gift for rhyming that is uncommon and your sense of humor makes it fun, too. Â
posted by
Pat_B
on June 8, 2020 at 1:58 PM
| link to this | reply
I'm not sure what you meant "down to the 50 mark". Â I guess I've missed too many posts lately. Â My Bad.
posted by
TAPS.
on June 8, 2020 at 12:34 PM
| link to this | reply