Students at Prai High are allowed to sign up for one English class each year. The numbers of students signing up for various Endasses for the next school year are given in the following table
Grade English English English English IV Total
roth 00 105 20
260
1111 35
40
115
10
200
12 10
00
145
270
Total 103 230 225
170 730
Part Al What is the probability that a student will take English IV? (2 points)
Part B Whis the probability that an 11th grader will take either English Il or English 1117 (7 polnts)
Part I What is the probability that a student will take English III given that he or she is in the 11th grade? (2 points)
Part Di consider the events "A student takes English I" and "A student is a 10th grader. " Are these events independent? Justify your answer. (points) (10 points)

points are handed out whenever you post answers.

brainliest answers are handed out by the person asking the question, so whether your answer is picked depends entirely on whether the asker bothers to pick

if you're asking about your rank, it depends on having a certain number of points and a certain number of brainliest answers. for example, at the time of this writing, i have 44338 points out of 15000 needed for the next (nearly triple the requirement! ) but i only have 24 out of 50 required brainliest answers. this number decays, meaning after a certain amount of time (i think about a month), the total number of brainliest answers you've earned doesn't count toward this total. (i've been stuck at the same rank for a long

the lesson to learn here is that you shouldn't worry about points or rank. chances are, no matter how good an answer you may provide, your efforts will go mostly unnoticed unless you focus on the newest/most active questions that get posted.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

faster, im not sure why but i know it is faster