An Annual Achievement Test was administered to third graders. The test has a mean score of 100 and standard deviation of 15. If Nancy's z-score is 2, what was her score on the test? O 121 118 O 115 O 130 O O OO

Q: ) A). B) -1.53 172 -1.67 0 2.35

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Q: B. 24 12 17 6. 16 14 38 13 C. How many elements are in AnB? 78 48 21 92

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Q: 2. ar'+b) 2.

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A: Two events A and B are said to be independent, if P(A and B) = P(A)P(B).

Q: 5 C2n-5 a. n-1 250 Σ b. c. 5.

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Q: c) trace(BD) d) (AB) C

A: Given, A=2-104-29,   B=0-93-1-31324,  C=601-6-11,D=-2-30141     We will compute c)  trace(BD) d)…

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A: Given   Population #1 Population #2 Total A 43 119 162 B 22 28 50 Total 65 147 212

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A: our objective is to check the concavity of function

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Q: Q.6) How many Squares are there?

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Q: 1. F({{a,b},{c}) 2. (1,2.3.4}) 3. P({{0}.5})

A: Note: Since you have asked multiple questions, we will solve the first three question for you. If…