Answer
a) He carried the observation with different students instead of one. For a good research outcome one should have as many tests as possible. By using 10 students, that was an advantage in his observation.
b) 30 minutes was a very short time. He could have increased the time he took with each student. It takes more than 30 minutes to complete a single homework. So if it was possible to take more time with a single student, it could be better.
<em>c) </em><em>10 students.</em>
<em>d) </em><em>30%</em>
3 students out of 10 used social media while doing their homework.
That is : 3/10 × 100 = 30%.
30% of high school students use social media while doing homework.
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Three hundred twenty-six thousandths.
Answer:
13
Step-by-step explanation:
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Answer:
I think its B!
Step-by-step explanation:
What grade r u in??
