Chapter 3, Problem 20E

(a)

To determine

To Explain: that the given table holds percentages rather than row or column percentages.

Explanation of Solution

Given:

	G	PG	PG-13	R	Total
Action/Adventure	3.33	4.17	14.2	7.5	29.2
Comedy	1.67	10	16.7	3.33	31.7
Drama	0	2.5	6.67	14.2	23.3
Thriller/Horror	0	0	9.17	6.67	15.8
Total	5	16.67	46.74	31.7	100

By seeing the table above, it is noticed that total of each column or row is not having the 100 percentage but the total of column or row is having 100 percentages so the table hols the percentages

(b)

To determine

To find: the most common genre/rating combination.

Answer to Problem 20E

PG-13

Explanation of Solution

Given:

	G	PG	PG-13	R	Total
Action/Adventure	3.33	4.17	14.2	7.5	29.2
Comedy	1.67	10	16.7	3.33	31.7
Drama	0	2.5	6.67	14.2	23.3
Thriller/Horror	0	0	9.17	6.67	15.8
Total	5	16.67	46.74	31.7	100

The most common genre/ rating combination was comedy/PG-13 although it has 16.7% (which is more than any other individual percentages) of the total number of movies released in 2005.

(c)

To determine

To find: the number of movies was PG-rated comedies.

Answer to Problem 20E

10%

Explanation of Solution

Given:

	G	PG	PG-13	R	Total
Action/Adventure	3.33	4.17	14.2	7.5	29.2
Comedy	1.67	10	16.7	3.33	31.7
Drama	0	2.5	6.67	14.2	23.3
Thriller/Horror	0	0	9.17	6.67	15.8
Total	5	16.67	46.74	31.7	100

By seeing the table, it is observed that 12 movies were PG-rated comedies although $120\times 10\%=12.$

(d)

To determine

To find: the number was G-rated.

Answer to Problem 20E

5%

Explanation of Solution

Given:

	G	PG	PG-13	R	Total
Action/Adventure	3.33	4.17	14.2	7.5	29.2
Comedy	1.67	10	16.7	3.33	31.7
Drama	0	2.5	6.67	14.2	23.3
Thriller/Horror	0	0	9.17	6.67	15.8
Total	5	16.67	46.74	31.7	100

By seeing the table, it is observed that 6 movies were G-rated although $120\times 5\%=6.$

(e)

To determine

To find: that this table support the assertion or not.

Answer to Problem 20E

Yes

Explanation of Solution

Given:

	G	PG	PG-13	R	Total
Action/Adventure	3.33	4.17	14.2	7.5	29.2
Comedy	1.67	10	16.7	3.33	31.7
Drama	0	2.5	6.67	14.2	23.3
Thriller/Horror	0	0	9.17	6.67	15.8
Total	5	16.67	46.74	31.7	100

Yes, although movies that could seen only by patrons 13 years old older are those that have a PG-13 or R ratings. Although there are 46.7% PG-14 rated movies and 31.7% R rated movies, 78.4% of the movies can seen only by patrons 13 years old or older.