C- correct a mistaken view
The author is correcting the idea that Harriet Ida Pickens and Frances Wills were the first African American women to serve in the navy.
There in an increase in reactivity because the nonmetals want to hold on to their electrons.
<h3>Reactivity</h3>
With less electronegativity, there is also less ionization energy. For metals, it is easier to lose the electrons, hence the metal becomes more reactive because it uses less energy.
For nonmetals, they are gain electrons and not lose them. Thus, an increase in electronegativity and ionization energy means an increase in reactivity because the nonmetals want to hold on to their electrons.
Find out more on reactivity at: brainly.com/question/17141109
The probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade is: D. 0.80.
<h3>How to calculate the probability?</h3>
In this exercise, you're required to determine the probability that students who were randomly selected studied for the test, if they pass it with a B or higher grade. Thus, we would apply Bayes's theorem.
- Let S represent studied for.
- Let B represent a score of B or higher grade
Therefore, we need to find P(S|B):

S|B = 0.80.
Read more on probability here: brainly.com/question/25870256
#SPJ1
<u>Complete Question:</u>
At the beginning of the semester, a professor tells students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. The probabilities are displayed in the tree diagram.
One type of energy change or transference is putting gas into your car because your converting chemical-energy into motion or kinetic-energy!