A large cable company reports the following.
80% of its customers subscribe to its cable TV service
41% of its customers subscribe to its Internet service
30% of its customers subscribe to its telephone service
26% of its customers subscribe to both its cable TV and Internet service
20% of its customers subscribe to both its cable TV and phone service
20% of its customers subscribe to both its Internet and phone service
15% of its customers subscribe to all three services

Consider the chance experiment that consists of selecting one of the cable company customers at random. Calculate the following probabilities.
a. P(cable TV only)
b. P(Internet | cable TV)
c. P(exactly two services)
d. P(Internet and cable TV only)

Step-by-step explanation:

ree is a French telecommunications company, subsidiary of Iliad that provides voice, video, data, and Internet telecommunications to consumers in France. Its head office is in the 8th arrondissement of Paris.

Free provides ISP services in France[1][2] and in the 30 OECD countries.[3] It was the first company to offer a "triple play" service in France[4][5][6] through its self-produced singular Freebox set-top box, claiming to have invented the box marketing concept in France in reference to all the other French ISPs who thereafter released "triple play" modems named to include the anglicism box as a suffix. These boxes provide comprehensive telecommunication services such as high-speed internet, telephone and digital television packages, leading Free to become the world's number one IPTV provider[7] offering almost systematically IPTV to subscribers and optimising it to be available on most landlines.[8][9]

Developing its own 3G and 4G networks, Free Mobile was launched in 2012 and became the 4th mobile network operator in France.

Contents

1History

1.11999–2001

1.22002-2003: ADSL at a disruptive price

1.32004-2006: Unbundled ADSL and "triple play"

1.42007-present: Fiber to the home

2Offers

2.1Voiceband

2.1.1Extent

2.1.2Pricing

2.2Freebox offer

3Services

3.1Internet access

3.2Telephone

3.2.1Telephone services

3.3Television

3.3.1IPTV leader

3.3.2ARDP protocol creator

3.4Freebox device

3.5Other services

4Corporate affairs

4.1Market share

4.2Profitability

4.3Logos and slogans

5Culture

5.1Disruptive

5.2Openness

5.3Corporate culture

5.4Popularity in France

5.5Criticism

6See also

6.1General

6.2Services

7References

8Further reading

9External links

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step-by-step explanation:

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d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;