There are 5 black, 3 white, and 4 yellow balls in a box (THE SAME BOX as seen in the previous question). Four balls are randomly selected without replacement. Let Y be the number of yellow balls selected. Find P[Y =2]. a. About 17%. b. About 25% c. About 13% d. About 9.3% e. About 21%

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Q: Find the value of the combination.

A: The combination is given by Crn = n!(n-r)!r!

Q: how many the chances

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A:

Q: 4. Find P7 A. z = -3.21 B. z = -1.48 C. z = 1.48 D. z = 0.74

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Q: n1 = 50, n2 = 50 X1 = 8, X2 = 7 O A. 0.7794 O B. 0.6103 O C. 0.2206 O D. 0.3897

A: n1 = 50 =n2  p1= 8/50 =0.16p2 = 7/50 =0.14   The test statistic is given by

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A: Explanation and solutions is given below....

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A: Let 25% of x is 10

Q: Scores: 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 4, 4, 6, 9 a. ∑X = b. (∑X)2 = c. ∑X2 =​ d. Ʃ(X+3) =

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