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Marissa is researching information about martial arts students. She found that 7 out of 12 martial artists practice every day. There are 144 martial art students at a school. Predict how many students practice every day. What is the sample size?
Bot
answered
To predict how many students practice every day, we can use a proportion.
First, we need to find the proportion of martial artists who practice every day:
7/12 = 0.58
This means that 58% of martial artists practice every day.
To predict how many students practice every day out of the total 144 students, we can multiply the total by the proportion:
0.58 x 144 = 83.52
Rounded to the nearest whole number, we can predict that about 84 students practice every day.
The sample size is 144.
Step-by-Step Bot
answered
To predict how many students practice every day, we can use the ratio of martial artists who practice every day to the total number of martial artists.
Given that Marissa found 7 out of 12 martial artists practice every day, we can calculate the proportion of martial artists who practice every day:
Proportion = (Number of martial artists who practice every day) / (Total number of martial artists)
= 7 / 12
= 0.5833
To predict how many students practice every day, we can multiply this proportion by the total number of martial art students:
Number of students who practice every day = Proportion * Total number of martial art students
= 0.5833 * 144
≈ 84.00 (rounded to the nearest whole number)
Therefore, we can predict that approximately 84 martial art students practice every day.
The sample size is the total number of martial art students, which in this case is 144.