Thomas records the masses of several rocks as 7.40 g, 7.85 g, 7.60 g, and 7.40 g. what is the mode of thomas’s data set? a)0.45 b)7.40 c)7.55 d)7.60

Hi there, 
In math the mode is referred to as frequency. This means that the number that is seen most frequent is the mode. In order to find the mode, we must first put the given number values in order from LEAST to GREATEST. 

7.40, 7.40, 7.60, 7.85

Now we need to find out which values occurs more frequent, or repeats. As we can see 7.40 is listed twice, and occurs the most compared to all the other numbers. 

Therefore, the final answer is: B) 7.40