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Quiz Discussion

Title: Standardized scores or z-scores

Grade: 9-a Lesson: S2-L4

Explanation: Let us discuss a few questions on this topic and review the answers to every question.

Quiz: Discussion in Class

Problem Id	Problem	Options
Steps 1	What is the z-score of a value of 27, given a set mean of 24, and a standard deviation of 2?	A) +1.3 B) -1.5 C) +1.5 D) -1.3
Steps 2	What is the z-score of a value of 104.5 in a set with \$\mu\$ = 125 and \$\sigma\$ = 6.2?	A) -1.303 B) +1.303 C) -3.306 D) +3.306
Steps 3	Find the value represented by a z-score of 2.403, given \$\mu\$ = 63 and \$\sigma\$ = 4.25.?	A) 26 B) 73.213 C) 94.03 D) 74.12
Steps 4	What is the z-score of the price of a pair of skis that cost $247 if the mean ski price is $279, with a standard deviation of $16?	A) -4 B) -6 C) -1 D) -2
Steps 5	What is the z-score of a measured value of 0.0034, given \$\mu\$ = 0.0041 and \$\sigma\$ = 0.0008?	A) -0.875 B) -0.0087 C) -1.300 D) -0.03

Problem Id

Problem

Options

Steps 1

What is the z-score of a value of 27, given a set mean of 24, and a standard deviation of 2?

A) +1.3
B) -1.5
C) +1.5
D) -1.3

What is the z-score of a value of 104.5 in a set with \$\mu\$ = 125 and \$\sigma\$ = 6.2?

A) -1.303
B) +1.303
C) -3.306
D) +3.306

Find the value represented by a z-score of 2.403, given \$\mu\$ = 63 and \$\sigma\$ = 4.25.?

A) 26
B) 73.213
C) 94.03
D) 74.12

What is the z-score of the price of a pair of skis that cost $247 if the mean ski price is $279, with a standard deviation of $16?

A) -4
B) -6
C) -1
D) -2

What is the z-score of a measured value of 0.0034, given \$\mu\$ = 0.0041 and \$\sigma\$ = 0.0008?

A) -0.875
B) -0.0087
C) -1.300
D) -0.03