Question

the dot plot below represents how long it takes students in a 7th grade math class to get to school every morning. commute time what was the mean commute time? answer attempt 1 out of 2 minutes

Explanation:

Step1: Count the number of dots for each time

• At \(5\) minutes: \(4\) dots
• At \(10\) minutes: \(1\) dot
• At \(15\) minutes: \(6\) dots
• At \(20\) minutes: \(5\) dots
• At \(25\) minutes: \(4\) dots
• At \(30\) minutes: \(4\) dots
• At \(35\) minutes: \(5\) dots
• At \(45\) minutes: \(2\) dots

Step2: Calculate the sum of (time × number of dots)

$$
LATEXBLOCK0
$$

Step3: Calculate the total number of dots

$$4 + 1+6+5+4+4+5+2=31$$

Step4: Calculate the mean

The mean formula is \(\text{Mean}=\frac{\text{Sum of (time × number of dots)}}{\text{Total number of dots}}\)

$$ \text{Mean}=\frac{705}{31}\approx22.74 $$

Answer:

\(22.74\)