Question
Current score: 93.36/100 points
Submi
A music school has budgeted to purchase 3 musical instruments. They plan to purchase a piano costing
The mean cost for a piano is
The mean cost for a guitar is
The mean cost for drums is
(Enter your answers to two decimal places.)
How many standard deviations above or below the average piano cost is the piano?
0.75
(1) standard deviations
A above the average
B below the average
© Your answer is correct.
How many standard deviations above or below the average guitar cost is the guitar?
0.25 standard deviations
A above the average
B below the average
Your answer is correct.
How many standard deviations above or below the average drum set cost is the drum set?
Submi
The mean cost for a piano is
The mean cost for a guitar is
The mean cost for drums is
(Enter your answers to two decimal places.)
How many standard deviations above or below the average piano cost is the piano?
0.75
(1) standard deviations
A above the average
B below the average
© Your answer is correct.
How many standard deviations above or below the average guitar cost is the guitar?
0.25 standard deviations
A above the average
B below the average
Your answer is correct.
How many standard deviations above or below the average drum set cost is the drum set?
Ask by Bolton Smith. in the United States
Jan 25,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
Piano:
-0.50 standard deviations below the average.
-0.50 standard deviations below the average.
Guitar:
0.25 standard deviations above the average.
0.25 standard deviations above the average.
Drum Set:
-1.50 standard deviations below the average.
-1.50 standard deviations below the average.
Solution
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Beyond the Answer
Did you know that the piano, beloved by many, has a fascinating history dating back to its invention by Bartolomeo Cristofori in the early 1700s? This innovative instrument was originally called the “gravicembalo col piano e forte,” which means “harpsichord with soft and loud”—a name that perfectly captures its dynamic range!
When it comes to real-world applications, understanding standard deviations can be a game-changer in budgeting for various activities, especially in education. For instance, if a school knows the typical costs and their variances for instruments, it can allocate funds more effectively and avoid overspending. This knowledge can also help to justify expenditures to stakeholders and ensure the school remains financially healthy while acquiring valuable tools for music education.
