variables State, University, and In-State Tuition (in dollars) are presented. Consider the 241 observations as a sample of all public colleges and universities in the United States. a) Use StatCrunch to construct an appropriately titled and labeled relative frequency histogram of the "In-State Tuition" variable. Copy your histogram into your solutions. b) What is the shape of this distribution? Answer this question in one complete sentence. c) Now overlay your highlighted histogram from part (a) with a Normal curve and add a vertical line at the mean. Go to Options 0 Edit in the top left corner of your graph. Inside the histogram graph box, look for Display Options. Next to "Overlay distrib' click the arrow next to the word --optional-- and select Normal. Then, check the box next to mean under the word "Markers." Copy and paste this histogram into your solutions