1. A certain rail company uses a method called demand pricing for setting the prices of their seats. The price per seat starts at a fixed amount. As the train starts to fill up, the prices gradually increase. A consumer watchdog agency selected a random coach car on a train traveling between New York and Philadelphia. They asked each traveler for the price paid for the seat. The following is the result of their survey. . Extend the graph by adding a cumulative frequency column. Price Frequency Cumulative Calculate the 6 entries for that column Frequency and answer the questions below. $39 12 $45 17 b. How many passengers paid a fare at or $55 14 below $45? $70 7 $88 5 c. How many passengers paid a fare at or $107 4 above $70? d. How many passengers paid a fare that was at least $45 and at most $88? 2. Use the table in problem 1 to answer these questions. a. Add a relative frequency column. Calculate the relative frequencies. Round each to the nearest thousandth. b. Which ticket prices have a relative frequency greater than 0.2 and less than 0.3? c. Interpret the relative frequency for the $88 ticket price in terms of a percent