1.64 To analyze his business and optimize his inventory, a school bag seller wants to know whether students prefer single-colored or multicolored school bags. He selects a random sample of 450 students from three different types of institutions (high school, college, and university).

The result shows that 185 are high school students, 115 are in college, and 150 of them are university students.

Of the high school students, 98 carry single colored bags, and the remainder carry multicolored bags.

One-fifth of the college students carry single colored bags, and the remainder carry multicolored bags. The university students preferred single colored bags with only 30% of them are carrying multicolored bags.

a. Describe the data with a cross table.

b. Describe the data graphically.