A prediction made on the outcome of an experiment you are about to carry out based on previous knowledge or experience is a(n) ________________.

What might be the most serious problem with the graph below?

Iodine turns starch into blue-black color. You want to perform whether starch is present in an unknown solution. Which test tube below is the positive control? Test tube #1: iodine + unknown solution Test tube #2: iodine + water Test tube #3: iodine + starch suspension

Six students are involved in an experiment that measures the length of their pinky finger. The collected data is shown below and the measurements are in centimeters. 4, 6, 5, 8, 5, 7 What would be the range for the above data set?

In a set of measurements, the difference between the highest measurement and the lowest measurement is the ______________.

You collected the heights and armspans of 30 students in class. Their measurements were plotted below. What kind of correlation is shown here?

Next, John performed an experiment on the effects of caffeine on body weight in mice. He had 2 groups each consisting of 2 mice. He weighed all the mice prior to the beginning of the experiment. For the next 120 days, one group of mice received a caffeine pill daily, while the other group did not. The only difference in the treatment and feeding of the mice was the caffeine supplementation. After the 120 days, he weighed all the mice again and meticulously recorded his results. John’s experiement has some flaws. What will be the most serious flaw of his experimental design?

You are conducting an experiment on the amount of time that will take you to commute to PGCC. And you make a state that: "It will take 20 minutes, if the highway is taken." In this experiment, what would be the independent variable?

You are conducting an experiment on the amount of time that will take you to commute to PGCC. And you make a state that: "It will take 20 minutes, if the highway is taken." All of the following are standardized variables except ___________________.

In Activity 4: HIV simulation exercise, how many students were infected with HIV at the beginning?

Iodine turns starch into blue-black color. You want to perform whether starch is present in an unknown solution. Which test tube below is the experimental tube? Test tube #1: iodine + unknown solution Test tube #2: iodine + water Test tube #3: iodine + starch suspension

In a set of measurements, the most occurring measurement is ______________.

You are conducting an experiment on the amount of time that will take you to commute to PGCC. And you make a state that: "It will take 20 minutes, if the highway is taken." In this experiment, what would be the dependent variable?

Six students are involved in an experiment that measures the length of their pinky finger. The collected data is shown below and the measurements are in centimeters. 4, 6, 5, 8, 5, 7 What would be the mode for the above data set?

One of your classmates proposed an experiment to study how the body weight affects the blood pressure. What would be the independent variable in this experiment?