Question

sydney collects data on the number of hours it takes her classmates to complete a history project. the histogram shows the data. how many classmates answered sydneys question? 27 classmates how many classmates take less than 12 hours? 15 classmates an error has occurred. please enter a number. how many classmates take 14 hours or more? 5 classmates

Explanation:

Step1: Find total classmates

To find the total number of classmates who answered, sum all the frequencies in the histogram.
$$8 + 7+6 + 4+2=27$$

Step2: Find classmates taking less than 12 hours

Sum the frequencies of the bars representing less than 12 hours (i.e., the first three bars).
$$8 + 7 = 15$$

Step3: Find classmates taking 14 hours or more

Sum the frequencies of the bars representing 14 hours or more (i.e., the last two bars).
$$4+1 = 5$$

Answer:

• For the first question: 27 classmates
• For the second question: 15 classmates
• For the third question: 5 classmates