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Lesson Example Discussion Quiz: Class Homework

Quiz In Class

Title: Mean Absolute Deviation, Standard Deviation, Percentages

Grade: 1300-a Lesson: S4-L5

Explanation: Hello Students, time to practice and review. Let us take next 10-15 minutes to solve the ten problems using the Quiz Sheet. Then submit the quiz to get the score. This is a good exercise to check your understanding of the concepts.

Quiz: in Class

Problem Id	Problem	Options
1	A website collects movie review scores from 1 to 5 stars. Here are the scores for a new movie: 4, 5, 3, 4, 5, 2, 1, 4, and 3. Caluclate the Mean Absolute Deviation(MAD).	A) 0.56 B) 0.89 C) 1.23 D) 2.35
2	Find the variance and standard deviation of the following scores on an exam: 92, 95, 85, 80, 75, and 50.	A) 13.69 B) 15.01 C) 14.8 D) 12.97
3	If a car depreciates in value by 15% each year, and its original value was $20,000, what will its value be after 3 years?	A) $15,258.20 B) $13,355.65 C) $16,552.52 D) $12,882.50
4	A bakery records the daily sales for a week (Monday-Friday) in dollars: $250, $220, $280, $235, and $240. Caluclate the Mean Absolute Deviation(MAD).	A) $16 B) $18 C) $20 D) $22
5	Calculate the standard deviation for the data 3, 2, 5, and 6 using the actual mean method.	A) 1.58 B) 3.04 C) 2.48 D) 1.39
6	If a shirt originally costs $40 and is now on sale for 25% off, what is the sale price?	A) $30 B) $33 C) $36 D) $39
7	Caluclate the Mean Absolute Deviation for the following data: 88 , 89 , 72 , 56 , 85 , 98 , 23 , 65 , and 69.	A) 15.11 B) 13.22 C) 15.89 D) 16.65
8	Calculate the standard deviation of the following data: 80, 94, 55, 88, 31, and 44.	A) 25.09 B) 24.25 C) 22.78 D) 23.67
9	Sarah scored 85% on her math test, which had a total of 50 questions. How many questions did she answer correctly?	A) 44 questions B) 46 questions C) 42 questions D) 50 questions
10	Calculate the Standard Deviation for the below data: $10$	A) 9.71 B) 10.3 C) 9.98 D) 8.71

Problem Id

Problem

Options

A website collects movie review scores from 1 to 5 stars.
Here are the scores for a new movie: 4, 5, 3, 4, 5, 2, 1, 4, and 3.
Caluclate the Mean Absolute Deviation(MAD).

A) 0.56

B) 0.89

C) 1.23

D) 2.35

Find the variance and standard deviation of the following scores on an exam: 92, 95, 85, 80, 75, and 50.

A) 13.69

B) 15.01

C) 14.8

D) 12.97

If a car depreciates in value by 15% each year, and its original value was $20,000, what will its value be after 3 years?

A) $15,258.20

B) $13,355.65

C) $16,552.52

D) $12,882.50

A bakery records the daily sales for a week (Monday-Friday) in dollars: $250, $220, $280, $235, and $240. Caluclate the Mean Absolute Deviation(MAD).

A) $16

B) $18

C) $20

D) $22

Calculate the standard deviation for the data 3, 2, 5, and 6 using the actual mean method.

A) 1.58

B) 3.04

C) 2.48

D) 1.39

If a shirt originally costs $40 and is now on sale for 25% off, what is the sale price?

A) $30

B) $33

C) $36

D) $39

Caluclate the Mean Absolute Deviation for the following data:
88 , 89 , 72 , 56 , 85 , 98 , 23 , 65 , and 69.

A) 15.11

B) 13.22

C) 15.89

D) 16.65

Calculate the standard deviation of the following data:
80, 94, 55, 88, 31, and 44.

A) 25.09

B) 24.25

C) 22.78

D) 23.67

Sarah scored 85% on her math test, which had a total of 50 questions. How many questions did she answer correctly?

A) 44 questions

B) 46 questions

C) 42 questions

D) 50 questions

Calculate the Standard Deviation for the below data:

$10$

A) 9.71

B) 10.3

C) 9.98

D) 8.71