Question

the shop teacher, mr. henson, wrote down how many picture frames the students made last week. making picture frames chart with vertical xs at 0, 1, 3 (x - axis: 0, 1, 2, 3) picture frames made how many students made at least 1 picture frame?

Explanation:

Step1: Count students who made 1 frame

From the graph, at 1 picture frame, there are 2 X's. So 2 students.

Step2: Count students who made 3 frames

At 3 picture frames, there are 10 X's (let's assume we count them: looking at the column for 3, it's 10). Wait, actually, let's re - check. Wait, the column for 0: let's see, the first column (0) has, let's count the X's. Wait, no, the question is "at least 1", so we need to count the number of X's in the columns for 1 and 3 (since 2 has no X's). Wait, the x - axis is 0,1,2,3. The column for 1 has 2 X's, column for 3 has 10 X's? Wait, no, let's look again. Wait, the first column (0) has, let's count: from the image, the first column (0) has 9 X's? Wait, no, maybe I misread. Wait, the problem is "at least 1", so we need to sum the number of students who made 1 or 3 (since 2 has no X's). Wait, the column for 1: 2 X's, column for 3: let's count the X's. Let's see, the column for 3 has 10? Wait, no, maybe the column for 1 has 2, column for 3 has 10? Wait, no, let's do it properly.

Wait, "at least 1" means 1 or more. So we need to count the number of X's in the categories of 1 and 3 (since 2 has no X's). Let's count the X's for 1: there are 2 X's. For 3: let's count the X's. Let's see, the column for 3 has 10? Wait, no, looking at the image, the column for 1 has 2 X's, column for 3 has 10? Wait, maybe I made a mistake. Wait, no, let's re - examine. The first column (0) has, say, 9 X's, column 1 has 2, column 3 has 10. But we need "at least 1", so 1 and 3. So 2 (for 1) + 10 (for 3) = 12? Wait, no, maybe the column for 3 has 10? Wait, maybe the correct count is: for 1 picture frame, number of students is 2; for 3 picture frames, number of students is 10. Then 2 + 10 = 12. Wait, but maybe I miscounted. Wait, let's look again. The column for 1: two X's. The column for 3: let's count the X's. Let's see, the column for 3 has 10 X's (let's count: from top to bottom, 10). So 2 + 10 = 12.

Wait, maybe the column for 1 is 2, column for 3 is 10. So total students who made at least 1 picture frame is 2+10 = 12.

Answer:

12