They are not valid because the student did not control all the variables that can affect plant growth
They are valid because the dependent variable caused a change in the independent variable.
They are not valid because the time frame to grow a plant is too short.
They are valid because the dependent variable caused a change in the independent variable.
Answer: Option C
Explanation:
The validity of a student’s result is basically based on how the dependent variable caused a change in the independent variable. A dependent variable is one which a scientist produce a variable and finds means to explain it in a proper way. An independent variable is one that is formed to compliment the dependent variable.
When the independent variable increases it causes decrease or increase in dependent variable. A intermediate or intervening variable is found which helps explain about the changes happening between the Independent and interdependent variable.
Answer:
Option (c) ''They are valid because the dependent variable caused a change in the independent variable'' is the correct answer.
Explanation:
The dependent variable is the one which is the center of observation. It is changed during the reaction and affected by it. When we measure the value of the reaction we always measure the dependent variable.
The independent variable is the one that is changed to cause the change in the value of the dependent variable. We can say that the dependent variable depends on independent for its reaction.
So dependent and independent variables are correlated with each other which tells the authenticity of the experiment.
Not all individuals in a population will survive to reproduce. Those that do, pass their traits to their offspring
Explanation:
Natural selection is an important process of evolution. Nature allows only the fittest to survive. Hence to survive in a particular environment an organism develops special features to adapt to that new environment. When changes happen in the environment variations happen in the genetic materials, a trait so as to survive.
Few organisms perish but few successful traits alone survive. This survived trait develop more adaptability and starts producing generations. This trait is thus passed on to their offspring.
The student was likely investigating the distribution of homework nights during a week, and should use a chi-square test of independence to analyze the data.
The student was most likely investigating the nights during which the highest number of students do the majority of their homework with equal frequencies during a week. This question relates to analyzing the distribution of homework nights throughout the week. To test this hypothesis, the student should use a chi-square test of independence, which compares the observed frequencies with the expected frequencies.
The chi-square test is a statistical method used to determine if there is a significant association between categorical variables. It compares the expected and observed frequencies in a contingency table, assessing whether any deviations are due to random chance or reflect a true relationship.
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Answer:
Which is faster, visual or auditory reaction times?
That is my question
Answer:
In biology, immunity is the balanced state of multicellular organisms having adequate biological defenses to fight infection, disease, or other unwanted biological invasion, while having adequate tolerance to avoid allergy, and autoimmune diseases.