<p>sorry the data was supposed to be in a table, but IDK how to make a table</p>
<p>NUMBER OF EMPLOYEES AT COMPANY X</p>
<p>Salary over $30,000
First Shift: 30
Second Shift: 10</p>
<p>Salary $30,000 or less
First Shift: 40
Second Shift: 20</p>
<p>The table above shows the number of employees at Company X classified according to work shift and salary. If a second shift employee will be picked at random what is the probability that the employee’s salary is over $30,000?</p>
<h1>of second shift employees whose salaries are over 30,000 / # of total employees = 10/100 = 1/10 = 10%</h1>
<p>@oblivi0n: I think you’re answer is wrong because the question is asking only about “second shift employees,” not all employees. Thus, I think the answer is 10/30 = 1/3</p>
<p>you’re right i’m sorry</p>
<p>woow I realized what my mistake was. I did 10/20 instead of 10/30.</p>
<p>stupid me >.<</p>
<p>Why can’t it be 10/40 since there are total of 40 employees from the first and second shift for over 30,000?</p>
<p>
</p>
<p>because they are from different shifts. the question says “If a second shift employee will be picked at random.” the info about the first shift employees is, essentially, unnecessary.</p>
<p>But why do we need to divide it by the first shift though?</p>
<p>We aren’t. The 30 comes from the total number of second shift employees.</p>
<p>Salary over $30,000
First Shift: 30
Second Shift: 10</p>
<p>Salary $30,000 or less
First Shift: 40
Second Shift: 20</p>
<p>Omg, by clearing that up for me… I keep on making these stupid mistakes. How do I stop this? -_-
Now I see how it’s 30 for total.</p>
<p>You just have to read the question and stop assuming things.</p>
<p>For example, if you see x^2 + 3x - 4, you shouldn’t automatically factor that into (x+4)(x-1) and solve for x unless the question specifically asks you to solve for x when the entire equation is equal to 0. Don’t go by impulse. Do what you are told</p>
<p>x^2 + 3x - 4 = 0
(x+4)(x-1) =0
x= -4, x= 1</p>