Last year, Mr. Smith’s biology class averaged 73 on their first test. This year, his new class averaged 87 on the same test. Based on these results, is it reasonable to conclude that this year’s class is more intelligent? A. Yes, a grade of 87 is higher than a grade of 73.
B. Yes, the study was done in an academic setting.
C. No, the experiment was not double-blind.
D. No, there was no use of a placebo in the experiment.
E. No, there may be other differences between the two years besides the grades.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>