500
A line plot showed the lengths, in inches, of 10 different seashells: 1/8, 1/4, 6/8, 1/8, 1/8, 3/8, 7/8, 1/4, 3/4, 1/2 Mary said there are 6 shells less than 1/2 inch long and 3 greater than 1/2 in long. Is she correct? Explain.
Yes, she is correct. There are 6 shells less than 1/2 inch, 3 greater than 1/2 inch, and 1 exactly 1/2 inch long.