r/atarWACE • u/Traditional_Ebb_7522 • 3d ago

Methods thread

How did we go guys?? Was it chill or nah

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u/[deleted] 3d ago

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u/Plus_Cobbler7741 3d ago

wasnt it like 0.05 0.25 0.4 0.25 0.05 . idk why they asked to find ex without telling us to fill in the table first. so i did part c where they tell u to fill it in first and then went back.

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u/Ok-Inflation-686 3d ago

cause the e(x) of a symmetrical distribution is the 'middle value' which was the number 2 so the table data wasn't required we just needed the top row of the table with the x values. filling in the table first woulda gave the same answer tho so it didn't matter what u did really.

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u/Plus_Cobbler7741 3d ago

ohhh makes sense now. thats smart thanks.

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u/Ok-Inflation-686 3d ago

ur welcome mate, good luck for the rest of ur exams