the nurse visits
In this experiment, the independent variable is the frequency of nurse visits to the homes of newborn babies, specifically whether the nurse visits occur three times. This variable is manipulated to observe its effect on the dependent variable, which is the number of doctor visits that the newborns require.
The independent variable is the frequency of nurse visits (three visits) to the homes of newborn babies.
The independent variable in this experiment is the frequency of nurse visits to the homes of newborn babies. This variable is manipulated by the researchers to observe its effect on the outcome, which is the number of doctor visits. The independent variable helps determine whether increased nurse visits lead to a reduction in doctor visits for newborns.
Careful
Doing duplicates means doing the experiment / process two times. Doing triplicates means doing the experiment / process three times.
three times as many tall plants as short plants
when you toss a coin three times, the total number of possible outcomes is
There were three times as many tall plants as short plants.
Three times as many shorts plants as tall plants.
Conducting an experiment three times helps to improve the reliability of the results by reducing the impact of random variability. It allows for averaging out any inconsistencies and provides a better estimate of the true outcome. Additionally, repeating the experiment helps to identify any errors or inconsistencies that may have occurred during the initial trial.
A scientist should conduct an experiment multiple times to ensure the reliability and validity of the results. Typically, repeating the experiment at least three times is recommended to account for variability and to establish a clear pattern. More repetitions may be necessary depending on the complexity of the experiment and the precision required. Ultimately, the goal is to achieve statistically significant results that can be confidently interpreted.