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Author Question: Solve the problem.The area under the standard normal distribution curve between 1 and 2 is equal to ... (Read 107 times)

stevenposner

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on: Jan 18, 2020

Question 1

Solve the problem.

Which of the following statements concerning areas under the standard normal distribution curve is/are true?
a. If a z-score is negative, the area to its right is greater than 0.5
b. If the area to the right of a z-score is less than 0.5, the z-score is negative.
c. If a z-score is positive, the area to its left is less than 0.5
◦ a, c
◦ a, b
◦ b, c
◦ a

Question 2

Solve the problem.

The area under the standard normal distribution curve between 1 and 2 is equal to 0.1359. Scores on a particular aptitude test are normally distributed with a mean of 100 and a standard deviation of 10. Which of the following are equal to 13.59%?
a. The percentage of scores between 120 and 130
b. The percentage of scores between 110 and 120
c. The percentage of scores between 80 and 90
d. The percentage of scores between 90 and 120
e. The percentage of scores between 90 and 110
◦ b, c
◦ b
◦ e
◦ a, b
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Marked as best answer by stevenposner on Jan 18, 2020

steff9894

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Reply #1 on: Jan 18, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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stevenposner

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Reply 2 on: Jan 18, 2020
Gracias!

T4T

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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