85.7k views
25 votes
The histogram shows the results of a drivers' education exam.

10
9
8
Frequency
3
2
1
0
0
10
20
30
70
80
90 100
40 50 60
Grade
What percent of the students score between an 80 and 90 othe drivers' education exam?
O 9%
O 10%
45%
90%

The histogram shows the results of a drivers' education exam. 10 9 8 Frequency 3 2 1 0 0 10 20 30 70 80 90 100 40 50 60 Grade-example-1

2 Answers

11 votes
The answer is 10% I think
User Eric Miraglia
by
4.6k points
6 votes

To find the percentage of students who scored between 80 and 90 on the drivers' education exam, we need to calculate the area under the histogram bar for that range. The percentage is 9%.

Step-by-step explanation:

To find the percentage of students who scored between 80 and 90 on the drivers' education exam, we need to calculate the area under the histogram bar for that range.

First, we need to determine the total number of students. Looking at the frequency axis, we can see that there are 3 students who scored between 80 and 90.

Next, we need to calculate the total number of students represented by the histogram. By summing up all the frequencies, we get 10 + 9 + 8 + 3 + 2 + 1 + 0 + 0 = 33.

Finally, we can calculate the percentage using the formula: (number of students between 80 and 90 / total number of students) * 100 = (3 / 33) * 100 = 9%

User Nikhil Vartak
by
4.2k points