Question

In: Statistics and Probability

Cable Services​ Watched: Female Married Principal​Shopper, % Detail Female Not Married Principal​Shopper, % Detail Male Married...

Cable Services​ Watched:

Female Married Principal​Shopper, % Detail

Female Not Married Principal​Shopper, % Detail

Male Married Principal​Shopper, % Detail

Male Not Married Principal​Shopper, % Detail

​A&E

20​%

18​%

22​%

22​%

Animal Planet

16​%

16​%

21​%

25​%

Cartoon Network

12​%

12​%

16​%

18​%

CNN

21​%

23​%

24​%

22​%

Comedy Central

88​%

66​%

13​%

11​%

​E! (Entertainment​ Television)

17​%

21​%

23​%

26​%

ESPN

18​%

17​%

47​%

45​%

Fox News Channel

27​%

27​%

29​%

31​%

Lifetime

20​%

19​%

10​%

12​%

Syfy

77​%

10​%

15​%

17​%

Total Est​ (000s)

47,880

           37,611

         17,234

11,637

How many unmarried male shoppers might I possibly reach with advertising campaigns for the following combinations of TV​ shows? Keep in​ mind, we want to avoid​ "double counting" males who may watch both channels. For​ simplicity, though, assume that the chance a male watches one cable channel does not influence the chances they will watch a different channel.

When two events are considered to be unrelated to one​ another, the probability of them BOTH happening is just​ "Probability of Event

​A"times×​"Probability

of Event​ B". This is represented as

​"Upper P left parenthesis Upper A intersect Upper B right parenthesisP(A∩B)​".

The combined probability of the events is​ "Probability of Event

​A"plus+​"Probability

of Event

​B"minus−​"Upper P left parenthesis Upper A intersect Upper B right parenthesisP(A∩B)​".

Multiply the the combined probability of watching both channels by the total number of unmarried male shoppers. Use the provided table above to answer the question.

Fill in the table below. ​(Round to the nearest whole​ number.)

Number of unmarried male shoppers watching both channels

​(000s)

​A&E and Animal Planet

4,829

ESPN and SyFy

(---------

Cartoon Network and​ E! (----------)

CNN and Fox News

Among married principal​ shoppers, (---------)1 is the ratio of females to males. ​(Round to two decimal​ places.)

Among married principal shoppers who watch Comedy​ Central, (-------------)​:1 is the ratio of females to males. ​(Round to two decimal​ places.)

The percentage of all​ SyFy-watching principal shoppers that are married is calculated as​ follows:

% of all SyFy dash watching Principal Shoppers are Married = equals StartFraction Female Married Pricipal Shopper Subscript SyFy + Male Married Pricipal Shopper Subscript SyFy Over All Principal Shoppers Subscript SyFy EndFraction% of all SyFy

Cable Services​ Watched:

All Principal Shoppers

Est​ (millions)

Female Married Principal Shopper Est​ (millions)

Male Married Principal Shopper Est​ (millions)

​A&E

57.1

14.6

5.4

Animal Planet

63.1

15.4

6.7

Cartoon Network

22.2

5.9

2.1

CNN

43.5

9.4

4.1

Comedy Central

14.5

2.6

2.2

​E! (Entertainment​ Television)

24.4

6.7

1.6

ESPN

58.1

10.8

7.2

Fox News Channel

54.1

12.5

4.8

Lifetime

31.1

9.9

1.3

Syfy

37.6

8.4

4.4

Totals

206.9

47.1

21.1

(---------------) % of all​ SyFy-watching principal shoppers are married. ​(Round to two decimal​ places.)

Approximately​ speaking, do married men or married women principal shoppers say they watch more of the cable channels listed​ here?

Fill in the table below. ​(Round to two decimal​ places.)

Avg. Channels Watched by Women Married.

Avg. Channels Watched by Men Married

(-----------)

(----------)

Solutions

Expert Solution

Answer to question# 1)

Probability for unmarried male couples:

P(A&E and Animal planet) = P(A&E)*P(Animal planet)

P(A&E and Animal planet) = 0.22 * 0.25 = 0.055

.

P(A&E OR Animal Planet) = P(A&E) + P(Animal planet) – P(A&E AND Animal planet)

P(A&E OR Animal Planet) =0.22 +0.25 -0.055

P(A&E OR Animal Planet) = 0.415

Thus total number of unmarried males : 0.415*11637 = 4829

.

P(ESPN or SyFy) = P(ESPN) + P(Syfy) – P(ESPN and Syfy)

P(ESPN or SyFy) = 0.45 +0.17 – 0.45*0.17

P(ESPN or SyFy) = 0.5435

Thus total number of unmarried males = 0.5435 *11637 = 6324

.

P(cartoon or E!) = P(Cartoon) + P(E!) - P(cartoon AND E!)

P(Cartoon or E!) = 0.18 + 0.26 – 0.18*0.26

P(Cartoon or E!) = 0.3932

Thus total number of unmarried males = 0.3932 *11637 = 4575

.

P(CNN or Fox) = P(CNN) + P(Fox) – P(CNN and Fox)

P(CNN or Fox) = 0.22 + 0.31 – 0.22*0.31

P(CNN or Fox) =0.4618

Thus total number of unmarried males = 0.4618 *11637 = 5373


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