Memememem\" post_id=\"1997167\" time=\"1601630962\" user_id=\"188691:

Estimation for psle score: 50+10(r-a/sd)
Sd:20
Average:65
You should be able to calculate ur psle score with this formula

50+10((r-a)/sd)

Memememem\" post_id=\"1997167\" time=\"1601630962\" user_id=\"188691:

Estimation for psle score: 50+10(r-a/sd)
Sd:20
Average:65
You should be able to calculate ur psle score with this formula

50+10((r-a)/sd)

giraffe169\" post_id=\"1997187\" time=\"1601632161\" user_id=\"188690:

Memememem\" post_id=\"1997167\" time=\"1601630962\" user_id=\"188691:

Estimation for psle score: 50+10(r-a/sd)
Sd:20
Average:65
You should be able to calculate ur psle score with this formula

what does r represent ?

students raw results

Astudentwhoanswersquestions\" post_id=\"1997076\" time=\"1601623783\" user_id=\"188683:

happypoppy\" post_id=\"1997030\" time=\"1601618072\" user_id=\"2408:

[quote=jakoh post_id=1997007 time=1601616410 user_id=151698]

Answer 90

Thanks! DS said that some of his friends said the question ask for “numbers” and not “number” and if it’s the former the answer shld be 89 and 90 while if it’s the latter, the answer is 90. Unfortunately, he can’t quite recall the question. He only remembers his answer was 90.

They asked for a possible answer so if someone puts both answers they are wrong.[/quote]They said \"find the possible numberS\"