What is the deviation score for the score of 9 from the data of problem #2? a. 0

Question

What is the deviation score for the score of 9 from the data of problem #2? a. 0 b. 2 c. -2 d. 4 If a student has enrolled in 13 units this semester. What would be her approximate z score on the variable "number of units taken this semester?" (when comp to other daytime students in a regular semester). a. 3.00 b. -2.00 c. 12.00 d. 0.00 If the standard deviation equals 25, the mean equals 100, and your z score is 3.00, your raw score is a. 100 b. 125 c. 150 d. 175 If your z score equals .50, what is your percentile? a. 50 b. 31 c. 69 d. 19

Explanation / Answer

(4)
xbar = 13
This value is associated with the z-score of 0.00

(5)
mean = 100

xbar = mean + z*sigma
xbar = 100 + 3*25 = 175
Option (D)

(6)
Probability P(z<0.5) = 0.6914
Hence the respective percentile is 69 - Option C

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.