Question

In a Business Statistics class with 136 students, the professor records how much money each student has in their possession during the first class of the semester. The histogram below is of the data collected. 60 50 40 30 20 10 0 10 20 30 40 50 60 Amount of Money 100 Reference: Ref 1-2 The number of students with over $30.00 in their possession is: under 5. about 10. about 30. O over 50.

Answer 1

We can solve this in two ways,

1. We add up the number of students who have $30 or less, these can be done easily by looking at the 1st 3 bars of the histogram. These add up to 60+40+20 = 120. The remaining have more than $30 so we subtract 120 from the total 136 and have 16 students. This fits well with option 2 of about 10 because it is neither below 5 or close to 30 or over 50

2.We can look at the last 4 bars, this is difficult because last 3 are below 10 but too small to find out the exact number. Even if we assume these to be around 2 each, and the 1st bar to be around 6, we will have approx 12 students, which again says it is close to 10

In case we have a clearer graph, we can calculate the exact numbers, and in that case we will get exact options to choose from. As the options are also approximate, we can go with about 10 option