a 01 b 02 c 03 d 05 e none of the above 16 Continuing the last question what is

A 01 b 02 c 03 d 05 e none of the above 16 continuing

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(a) 0.1(b) 0.2(c) 0.3(d) 0.5(e) none of the above16. Continuing the last question, what is the variance ofX?17. LetZbe a standard normal random variable, Φ the standard normal cdf, andcan arbitrarypositive number. Which of the following expressions isfalse?18. LetZbe a standard normal random variable, Φ the standard normal cdf, andcan arbitrarypositive number. Which of the following quantities is larger than the others?4
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19. LetXbe a normal random variable with mean 85 and standard deviation 10. Knowing thatΦ(1.5) = 0.9332, what is the probability thatX70?(a) 0.0668(b) 0.1336(c) 0.8664(d) 0.9332(e) none of the above20. Continuing the last question, ifP(85-b < X <85 +b) = 0.8664, what isb?5
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