3 years ago

Can someone help me solve this

1 answer:

5 0

The boosters do not have enough money for their shirts because they need $537 and only have $435 dollars.
They would need to negotiate each shirt for $7.28 in order to purchase for each student

EQUATION) 435 - 56 = 379/52 = 7.28

52(9.25) = 481 + 56 (fee) = 537

i thinkk this is right im so sorry if its not

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Let X1, . . . ,Xn be an i.i.d. random sample from a N(0, 1) population. Define Y1 = 1 n n X i=1 Xi , Y2 = 1 n n X i=1 |Xi| . Cal

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For each $1\le i\le n$ , $E[X_i]=0$ , so that

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Meanwhile,

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$E[|X_i|]=\displaystyle\frac1{\sqrt{2\pi}}\int_{-\infty}^\infty|x|e^{-x^2/2}\,\mathrm dx=\sqrt{\frac2\pi}\int_0^\infty xe^{-x^2/2}\,\mathrm dx=\sqrt{\frac2\pi}$