Linear Transformations of Data
Quiz
•
Mathematics
•
11th - 12th Grade
•
Practice Problem
•
Hard
Standards-aligned
Benjamin Pongracz
Used 3+ times
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The employees of StatCo earn a median salary of $65,000 with a standard deviation of $4,500. The company gives every employee a $2,000 raise. What is the new median salary?
$63,000
$65,000
$67,000
$69,500
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A teacher grades a set of tests and finds that the average grade is 84% with a standard deviation of 4%. Later, the teacher discovers that one of the questions had an error in it and decides to add 2% to each score. What is the new average score?
82%
84%
86%
88%
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A teacher grades a set of tests and finds that the average grade is 84% with a range of 35%. Later, the teacher discovers that one of the questions had an error in it and decides to add 2% to each score. What is the new range?
33%
35%
37%
86%
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
SkyNet discovered new technology that enabled them decrease the cost of their drone production by 5%. If the average cost of a drone was $80 million with a standard deviation of $7 million, what would the new average cost be?
$75 million
$76 million
$84 million
$85 million
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
SkyNet discovered new technology that enabled them decrease the cost of their drone production by 5%. If the average cost of a drone was $80 million with a standard deviation of $7 million, what would the new standard deviation of cost be?
$2 million
$6.65 million
$7.35 million
$12 million
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In 2021, the average hourly wage for a McDonald's worker was $16.27 per hour with a standard deviation of $8.35 per hour. If McDonald's decides to increase its wages by 10%, what would be their new average hourly wage?
$16.27
$16.37
$17.27
$17.90
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In 2021, the average hourly wage for a McDonald's worker was $16.27 per hour with a standard deviation of $8.35 per hour. If McDonald's decides to increase its wages by 10%, what would be the new standard deviation of the hourly wage?
$8.35
$8.45
$9.19
$9.35
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