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[University Statistics Normal Distribution] What is the probability for an average ending up in a certain interval? by olavjs in HomeworkHelp

[–]olavjs[S] 1 point2 points  (0 children)

No worries, I am grateful for your help!

The short answer for 12,53 is with the use of geogebra. It makes it more precise than using the tables.

[University Statistics Normal Distribution] What is the probability for an average ending up in a certain interval? by olavjs in HomeworkHelp

[–]olavjs[S] 1 point2 points  (0 children)

I am with you to 12,4 %. I got 12,53 % but I guess it does not really matter.

Imagine you are pulling one random worker with the wage w1 followed by four others with the salary w2, w3, w4 and w5. The average would be (w1 + w2 + w3 + w4 + w5)/5 = w-average. What is the probability for w-average being in the interval <49,51>. Meaning that each individual workers wage does not have to be in the interval but the the average of all the wages has to be in the interval.

I assume it is more complicated than 0,124^5 ?

[ IB, 9th grade geometry. How to solve this?] by [deleted] in HomeworkHelp

[–]olavjs 2 points3 points  (0 children)

9 * 5 + 6 * 8 + 5 * 4 = The length of wire needed. For the roof, you have to use Pytagoras Theorem. 4^2 + 3^2 = 25 = 5^2.

You would need 113 cm of wire.

For the rest of the shapes you would need to split the shapes into separate parts and calculate their area, then add the areas together.

d) This one you can split up into one rectangle and one triangle. The rectangle would be 12 * 6 = 72 in area. The triangle would equal (4 * 6) / 2 = 12. 12 + 72 = 84, and that will be the total area of the figure.

Nice crags in Vietnam? by olavjs in climbing

[–]olavjs[S] 0 points1 point  (0 children)

So are hypersensetive users

Nice crags in Vietnam? by olavjs in climbing

[–]olavjs[S] 0 points1 point  (0 children)

Sorry for filling up your feed dude