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Lesson Example Discussion Quiz: Class Homework

Quiz Discussion

Title: Mean Absolute Deviation, Standard Deviation, Percentages

Grade: 1300-a Lesson: S4-L5

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	Calculate the Mean Absolute Deviation (MAD) for the weekly temperatures in Celsius: 22, 24, 23, 25, 27, 26, and 21.	A) 1.69 degrees B) 1.71 degrees C) 1.78 degrees D) 1.63 degrees
Steps 2	Calculate the Mean Absolute Deviation (MAD) for the daily sales (in dollars) recorded over a year: $1200, $1300, $1100, $1400, $1500, $1250, $1350, $1450, $1200, $1300, $1100, and $1400.	A) $108.56 B) $105.20 C) $114.89 D) $104.86
Steps 3	Calculate the standard deviation for the heights (in centimeters) of a group of students: 160, 165, 170, 175, 180, and 185.	A) 9.23 B) 9.35 C) 8.95 D) 9.56
Steps 4	Calculate the standard deviation for the sample weights (in grams): 62.3, 74.1, 51.8, 23.5, 25.2, 40.9, and 93.2.	A) 25.61 B) 25.09 C) 24.98 D) 24.37
Steps 5	In a class of 30 students, 18 of them passed the exam. Calculate the percentage of students who passed the exam.	A) 40% B) 50% C) 60% D) 70%

Problem Id

Problem

Options

Steps 1

Calculate the Mean Absolute Deviation (MAD) for the weekly temperatures in Celsius: 22, 24, 23, 25, 27, 26, and 21.

A) 1.69 degrees

B) 1.71 degrees

C) 1.78 degrees

D) 1.63 degrees

Steps 2

Calculate the Mean Absolute Deviation (MAD) for the daily sales (in dollars) recorded over a year: $1200, $1300, $1100, $1400, $1500, $1250, $1350, $1450, $1200, $1300, $1100, and $1400.

A) $108.56

B) $105.20

C) $114.89

D) $104.86

Steps 3

Calculate the standard deviation for the heights (in centimeters) of a group of students: 160, 165, 170, 175, 180, and 185.

A) 9.23

B) 9.35

C) 8.95

D) 9.56

Steps 4

Calculate the standard deviation for the sample weights (in grams):
62.3, 74.1, 51.8, 23.5, 25.2, 40.9, and 93.2.

A) 25.61

B) 25.09

C) 24.98

D) 24.37

Steps 5

In a class of 30 students, 18 of them passed the exam. Calculate the percentage of students who passed the exam.

A) 40%

B) 50%

C) 60%

D) 70%