* Eunoia JC (EJC)

[obm]

Mindays, many from the 3 feeder schools were upset about Mount Sinai in the West and yet, you a former Victorian, didn't eliminate this JC 2 years ago?


Everyone out there and up there knew you were NYJC's influencer, as you were arguing with practically everyone who upset you about NYJC. Within this forum, everyone knew you were an ardent NYJC fan. As I once said, your reputation precedes you, and I'll say that again. I vividly remember reading your quarrels with some EJC parents prior to going for the 2017 EJC JAE Open House.

It was hard for anyone to believe you'd shortlist EJC for your own son, after criticising EJC and comparing NYJC with EJC. Despite all these, you 'went' for the EJC Open House (and NYJC Open House) in lieu of VJC Open House. I was surprised geography wasn't part of your consideration as your son eventually picked another JC in the East. Hope your son did well last year and get into his preferred course.

mindays\" post_id=\"1747072\" time=\"1484305357\" user_id=\"140018:

I went for both EJC and NYJCs' open houses over these 2 days, NYJC is definitely more crowded, more lively, more vibrant. Students can tell for their own. Moreover, NYJC is the top non-IP JC in Singapore.

That's the unique part of NYJC. You may think that JC's school environment is hectic where everybody is scrambling to do their best, that is essentially true. Seniors in NYJC are very friendly in general and are willing to go the extra mile to help its peers. That's the culture of care in NY, which is so different from other JCs. NYJC is well-known for its culture of care and is well established on this aspect.

[Grandyma]

obm\" post_id=\"1900940\" time=\"1551659275\" user_id=\"162988:

Ah Ma, 42.3% isn't too bad in my opinion. I recall Mindays used to compare NYJC's 2015 A level results with its then rival, RVHS' results. In 2015, RVHS' CSC was 30% As. That should be the nth time RVHS was sitting for H2 CSC after a few years after they'd gone IP.

I guess for EJ's maiden showing, 42.3% is acceptable. DHS is 50% this year, no surprises to me indeed. Truly and fairly, we need to see HCI's CSC results as they have quite a lot of PRC scholars I believe. You may already know the nation's top HCL specialists are all absorbed by HCI, just like all top EL specialists (GEP especially) are with RI, possibly resulting in the latter's 9in10 As for E.Lit.


https://www.kiasuparents.com/kiasu/forum/viewtopic.php?f=40&t=68179&p=1746859&hilit=china+studies+in+chinese#p1746859

If you click on the above NYJC link, you'd notice Mindays at that time revealed that NYJC's 2015 Mean was 81/90. Was then the curve a positive skew or negative skew for NYJC?

Hey, Mindays isnt me lah...

If you think 42.3% isnt too bad...then ok.
So can you answer my interpretation of the abovr diagram. Am I right?
My ques: Mean can be higher or lower than Median? And not what someone said can be 1-3 pt lower than Median.
Not finding out Ny 2015 Mean is curved positive/negative.

[phtthp]

thsheng99:

Got some updated info on Bishan campus
https://eunoiajc.moe.edu.sg/about/bishan/

After shift into Sin Ming campus year end December 2019 this year , there should be an Open House next Year at grand new premises, 2020 January

[floppy]

Grandyma\" post_id=\"1900956\" time=\"1551662670\" user_id=\"153793:

Grandyma\" post_id=\"1900939\" time=\"1551658426\" user_id=\"153793:

https://postimg.cc/F1jBMcdz

Above diagrams show its not true Median can be 1-3 point Higher than Mean.
Can be higher or lower than Median as shown here.
Correct me if I interpret these diagram wrongly. It means if the majority get high score, then the Mean will be closed to Median score or even higher. But it wont be like 3 point lower than Median as what someone said.
Right?

So can you answer my interpretation of the abovr diagram. Am I right?
My ques: Mean can be higher or lower than Median? And not what someone said can be 1-3 pt lower than Median.
Not finding out Ny 2015 Mean is curved positive/negative.

For all the top JCs, i.e. mean > 80, their mean is likely to be much lower than median.
Reason being that the max is capped at 90 RP (regardless of 6, 7, 8 or 9 distinctions). There's a short tail towards the top end, and the possibility of a very long tail towards the lower end, similar to the picture of negative skew.

[lee_yl]

Grandyma\" post_id=\"1900939\" time=\"1551658426\" user_id=\"153793:

https://postimg.cc/F1jBMcdz

Above diagrams show its not true Median can be 1-3 point Higher than Mean.
Can be higher or lower than Median as shown here.
Correct me if I interpret these diagram wrongly. It means if the majority get high score, then the Mean will be closed to Median score or even higher. But it wont be like 3 point lower than Median as what someone said.
Right?

Statistics 101.

Let’s take a look at this population:
10, 20, 30, 40 and 50

Mean = Median = 30

Change the population a bit:

5, 10, 30, 40, 50

We have Mean = 27 < Median

Change the population slightly again:

5, 20, 30, 50, 50

We have Mean = 31 > Median

Take RI for example.
Class of 2017, with 63% 3H2 Dist, the mean was 85.
Class of 2016, with 61% of 3H2 Dist, median was 87.8.
If we assume that the RI population shares the same statistical properties every year, with a mean that hovers around 85, then median is indeed between 1-3 points higher than the mean. And the second assumption is that most of the other JCs’ population share the same characteristics, some very good students, mostly clustered near the 3 H2 distinctions and a small cluster that doesn’t perform as well.

Of course, if all the schools are forthcoming with their performance metrics, we won’t need to extrapolate and assume that much

[obm]

It is likely to be left skewed distribution or negative skew for NJC, based on that pathetic bit of info provided by the school. There were 35% H2As and the Math & Science depts did pretty well according to one table compiled by a member in the Alevel 2018 megathread.


NJC's '1 in 2 scored As for H3' cannot be counted as it's not part of UAS. I hazard a guess its Mode is on the right side. But as to how flat the curve is, we need its full set of data to determine how big the margin is between its Mean and Median. For negative skews, the Median is higher than Mean, hence the preference by its Principal to present the Median.
https://postimg.cc/dkvrbBmH

[Grandyma]

obm\" post_id=\"1900989\" time=\"1551669708\" user_id=\"162988:

It is likely to be left skewed distribution or negative skew for NJC, based on that pathetic bit of info provided by the school. There were 35% H2As and the Math & Science depts did pretty well according to one table compiled by a member in the Alevel 2018 megathread.

NJC's '1 in 2 scored As for H3' cannot be counted as it's not part of UAS. I hazard a guess its Mode is on the right side. But as to how flat the curve is, we need its full set of data to determine how big the margin is between its Mean and Median. For negative skews, the Median is higher than Mean, hence the preference by its Principal to present the Median.
https://postimg.cc/dkvrbBmH

Thank you all for answering my question.
So its right to say Mean can be higher or lower than Median.
Regard to NJC Mean, yes fair enough to say its Mean likely negative skewed as Principal didnt share much abt its cohort scores.
How about NYJC?
Principal shared \"More than 5 out of 10 in you got more than 85 pt\".
So can say its Median is slightly > 85.X?
Skewed towards?

[phtthp]

Grandyma:

How about NYJC?

Principal shared \"More than 5 out of 10 in you scored More than 85 points\".

Be careful, with above vague, ambiguous statement, because Principal of Nanyang Junior College did not state explicitly nor clearly, what exactly is this \"more than 5 out of 10 in you ? This \" in you\" being refered to, actually constitute what ? P of NYJC didn't define explicitly, is it

A) more than 5 out of 10, who had taken all H2 subjects, or

B) more than 5 out of 10, who had taken all H1 subjects, or

C) more than 5 out of 10, who had taken either H1 or H2 subjects ?

As you know, playing of words around, do have an impact, on the hearers.

For example

The meaning of

\"5 out of 10 in you, who had ALL taken H2 subjects\"

Is very different, from say,

\"5 out of 10 in you : out of which 4 had taken H1 subjects, while one taking H2 subject\"

See the impact (difference), after you read ?

[Grandyma]

phtthp\" post_id=\"1901035\" time=\"1551680107\" user_id=\"35251:

How about NYJC?

Principal shared \"More than 5 out of 10 in you scored More than 85 points\".

Be careful, with above vague, ambiguous statement, because Principal of Nanyang Junior College did not state explicitly nor clearly, what exactly is this \"more than 5 out of 10 in you. This \" in you\" refering to, P of NYJC didn't define explicitly, is it

A) more than 5 out of 10, who had taken all H2 subjects, or

B) more than 5 out of 10, who had taken all H1 subjects, or

C) more than 5 out of 10, who had taken either H1 or H2 subjects ?[/quote]Ah..if he was addressing the cohort, it refers to the whole cohort mah.
Just like other JCs put up slides in front of cohort eg 7 in 10 got A in H2 Chem- this 10 refers to all taking this H2 Chem.
To get 85 pts above, that is to add up all RP ( 3 H2 + H1+GP+PW). Otherwise how to get 85pt if just add only H2 or H1 subjects?

[floppy]

Grandyma\" post_id=\"1901033\" time=\"1551679512\" user_id=\"153793:

Thank you all for answering my question.
So its right to say Mean can be higher or lower than Median.
Regard to NJC Mean, yes fair enough to say its Mean likely negative skewed as Principal didnt share much abt its cohort scores.
How about NYJC?
Principal shared \"More than 5 out of 10 in you got more than 85 pt\".
So can say its Median is slightly > 85.X?
Skewed towards?

If you take principal's comment at face value, median > 85 (however, we also know 5 in 10 could also mean 45% ).

If 50% of the students score between 85 and 90, an equal amount would have to score between 80 and 85 to have mean = median, or a better ratio for mean > median, which are very unlikely to be the case. Chances are, there will be a handful scoring in the 70s or lower. Hence, NYJC mean should also be in the low 80s. How low? Insufficient data to know.