A group of 150 students were asked to identify 55 flowers. The relative frequency table shows the results.
About how many students identified at least 42 flowers?
0-6 5
7-13 14
14-20 6
21-27 11
28-34 19
35-41 29
42-48 13
49-55 3
Well, let's see. If we add up the frequencies of the last few categories (42-48, 49-55), we can find out how many students identified at least 42 flowers.
So, 13 students identified between 42 and 48 flowers, and 3 students identified between 49 and 55 flowers.
Adding these two numbers together, we get a total of 16 students.
Therefore, about 16 students identified at least 42 flowers.
I hope that makes sense and brings a smile to your face!
To find out how many students identified at least 42 flowers, we need to calculate the cumulative frequency of the category 42-48 and the category 49-55, and then sum them up.
To calculate the cumulative frequency, we add up all the frequencies from the first category to the current category.
Cumulative frequency of 42-48:
5 (0-6) + 14 (7-13) + 6 (14-20) + 11 (21-27) + 19 (28-34) + 29 (35-41) + 13 (42-48) = 97
Cumulative frequency of 49-55:
97 (cumulative frequency of 42-48) + 3 (49-55) = 100
Therefore, about 100 students identified at least 42 flowers.
To determine the approximate number of students who identified at least 42 flowers, you can sum up the frequencies of all the ranges starting from 42 flowers and above.
Looking at the relative frequency table, we can see that the frequency count for the range 42-48 is 13 and the frequency count for the range 49-55 is 3. These ranges represent the number of students who identified 42-48 flowers and 49-55 flowers, respectively.
To find the approximate number of students who identified at least 42 flowers, we can add the frequency counts of these two ranges:
13 + 3 = 16
Therefore, approximately 16 students identified at least 42 flowers.