A. To find out how many students practice every day, you can use a proportion. First, divide the total number of practicing students (7) by the total number of students surveyed (12):
7/12
Then, multiply that proportion by the total number of martial arts students at the school (144):
(7/12) x 144 = 84
Therefore, it is predicted that 84 martial arts students practice every day.
B. The sample size is the number of students surveyed, which is 12.
Marissa is researching information about martial arts students. She found that 7 out of 12 martial arts students practice every day. There are 144 martial arts students at a school.
A. Predict how many students practice every day.
B. What is the sample size?
2 answers
A number cube is rolled 450 times. The number 3 comes up 67 times.
A. What is the theoretical probability of rolling a 3? Answer as a fraction in simplest form.
B. What is the experimental probability of rolling a 3? Answer as a fraction in simplest form.
A. What is the theoretical probability of rolling a 3? Answer as a fraction in simplest form.
B. What is the experimental probability of rolling a 3? Answer as a fraction in simplest form.