- Messages
- 25
- Reaction score
- 37
- Points
- 23
Can anyone help me with this sum, please? It's from o/n/09-62. I attached the mark scheme for your convenience 
Please help with number (ii)
Please help with number (ii) -
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Help needed! tough 9709 S1 problem!
- Thread starter Mayisha M
- Start date
- Messages
- 109
- Reaction score
- 215
- Points
- 53
How did they get z value without any calculation?
- Messages
- 35
- Reaction score
- 9
- Points
- 18
for normal distribution Q1 & Q3 are Always 25% & 75% so Z=+-0.674Can anyone help me with this sum, please? It's from o/n/09-62. I attached the mark scheme for your convenience
View attachment 52749 View attachment 52748
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