Question

2 week streak
9th 10th 11th 12th row total
plays an instrument 7 3 5 9 24
does not play an instrument 14 22 17 9 62
column total 21 25 22 18 86
eddie will enter high school next year. his older brother tells him that
everybody in high school plays a musical instrument. skeptical, eddie
decides to investigate. throughout the next month, he asks a randomly
selected sample of high - school students whether they play an instrument.
the table shows what eddie finds. rounded to the nearest percent, what
percentage of all 10th graders do not play an instrument?
ignore the % symbol when entering your answer. for example, if the
answer is 41.6%, enter 41.6.)

Explanation:

Step1: Identify the number of 10th graders who do not play an instrument and the total number of 10th graders

From the table, the number of 10th - graders who do not play an instrument is \(22\), and the total number of 10th - graders is \(25\).

Step2: Calculate the percentage

The formula for percentage is \(\text{Percentage}=\frac{\text{Part}}{\text{Whole}}\times100\). Substitute the values: \(\text{Percentage}=\frac{22}{25}\times100\).

$$
LATEXBLOCK0
$$

Answer:

\(88\)