Giving a test to a group of students, the grades and gender are summarized below
A B C Total
Male 2 10 17 29
Female 7 15 4 26
Total 9 25 21 55
If one student was chosen at random,
find the probability that the student got a C.
same song, different verse
Giving a test to a group of students, the grades and gender are summarized below:
A B C Total
Male 19 11 8 38
Female 18 4 9 31
Total 37 15 17 69
What percent of students that are female got a grade of 'B'?
Answer = Incorrect % (Round to the nearest tenth of a percent.)
To find the probability that the student got a C, we need to compare the number of students who got a C to the total number of students.
From the table, we can see that there are a total of 21 students who got a C.
The total number of students in the group is 55.
Therefore, the probability that the student got a C is 21/55.
To find the probability that a randomly chosen student got a C, we need to figure out the total number of students who received a C grade and divide it by the total number of students in the group.
Looking at the table, we can see that the total number of students who received a C grade is 21. And the total number of students in the group is 55.
Therefore, the probability that a randomly chosen student got a C is:
Probability = Number of students who got a C / Total number of students
= 21 / 55
= 0.381 (rounded to three decimal places) or 38.1% (rounded to one decimal place)
So, the probability that a randomly chosen student got a C is 0.381 or 38.1%.