Given that z is a standard normal random variable, what is the value of z if the

Question

Given that z is a standard normal random variable, what is the value of z if the area to the left of z is 0.9382? a. 1.8 b. 1.54 c. 2.1 6. Exhibit 4. The random variable x is known to be uniformly distributed between 10 and 25 7. Refer to Exhibit 4, Compute P(15 sx s 40) a. 1.66 b. 0.5 c. 0.78 d. 0.67 8. Refer to Exhibit 4, Compute Varfx) a. 18.75 c. 21.75 d. 8 Refer to Exhibit 4, Compute E(x) a. 15.5 9. c. 10.5 d. 20 10. Which of the following is not a required condition for a discrete probability function? a. fx) 2 0 for all values of x (x) = 1 All of the answers are correct. d.

Explanation / Answer

Q6) Area to the left of Z is = 0.9382

Therefore Area from 0 to Z is = 0.9382-0.5 =0.4382

The corresponding value of Z is 1.54

Answer: Option B)

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