3. the math teachers at miller intermediate made an experiment to determine how many delta math lesson…

3. the math teachers at miller intermediate made an experiment to determine how many delta math lesson students were completing in both the 7th and 8th grade. the results of their experiment are in shown in the table. based on the results, what is the experimental probability that a student is in the 7th grade and completed more than 30 delta math lessons? type a response

3. the math teachers at miller intermediate made an experiment to determine how many delta math lesson students were completing in both the 7th and 8th grade. the results of their experiment are in shown in the table. based on the results, what is the experimental probability that a student is in the 7th grade and completed more than 30 delta math lessons? type a response

Answer

Answer:

$\frac{3}{12}$ or $\frac{1}{4}$

Explanation:

Step1: Find total number of students

$15 + 25+60 + 25+45 + 30=200$

Step2: Find number of 7th - grade students who completed more than 30 lessons

The number of 7th - grade students who completed more than 30 lessons is 60.

Step3: Calculate experimental probability

The experimental probability $P=\frac{60}{200}=\frac{3}{10}$