One percent

One percent (or 1%) may refer to:

Groups of people

Entertainment

Other uses

68–95–99.7 rule

In statistics, the so-called 68–95–99.7 rule is a shorthand used to remember the percentage of values that lie within a band around the mean in a normal distribution with a width of one, two and three standard deviations, respectively; more accurately, 68.27%, 95.45% and 99.73% of the values lie within one, two and three standard deviations of the mean, respectively. In mathematical notation, these facts can be expressed as follows, where x is an observation from a normally distributed random variable, μ is the mean of the distribution, and σ is its standard deviation:

In the empirical sciences the so-called three-sigma rule of thumb expresses a conventional heuristic that "nearly all" values are taken to lie within three standard deviations of the mean, i.e. that it is empirically useful to treat 99.7% probability as "near certainty". The usefulness of this heuristic of course depends significantly on the question under consideration, and there are other conventions, e.g. in the social sciences a result may be considered "significant" if its confidence level is of the order of a two-sigma effect (95%), while in particle physics, there is a convention of a five-sigma effect (99.99994% confidence) being required to qualify as a "discovery".

5-4-3 rule

The 5-4-3 rule also referred to as the IEEE way (contrary to the Ethernet way) is a design guideline for Ethernet computer networks covering the number of repeaters and segments on shared-access Ethernet backbones in a tree topology. It means that in a collision domain there should be at most 5 segments tied together with 4 repeaters, with 3 segments containing active senders (i.e. terminals).

This rule is also designated the 5-4-3-2-1 rule with there being two network segments and one collision domain.

The 5-4-3 rule was created when 10BASE5 and 10BASE2 were the only types of Ethernet network available. The rule only applies to shared-access 10 Mbit/s Ethernet segments connected by repeaters or repeater hubs (collisions domains). The rule does not apply to switched Ethernet because each port on a switch constitutes a separate collision domain. With mixed repeated and switched networks, the rule's scope ends on a switched port.

Details

Collision detection

According to the original Ethernet protocol, a signal sent out over the collision domain must reach every part of the network within a specified length of time. The 5-4-3 rule ensures this. Each segment and repeater that a signal goes through adds a small amount of time to the process, so the rule is designed to minimize transmission times of the signals.

First (song)

"First" is a song by American actress and singer-songwriter Lindsay Lohan, taken from her debut studio album, Speak (2004). It was released as the album's third and final single on May 10, 2005 (see 2005 in music). The song was released to help promote Lohan's film, Herbie: Fully Loaded, in which it appears on the soundtrack. The song failed to chart in the United States, but it performed well in other countries such as Taiwan.

The song is about wanting to come first in her boyfriend's life. The song incorporates high pop punk oriented instrumental sounds, but it also conserves her typical teen pop touch. The song was the least successful single from its parent album.

Background

"First" was written and produced by hit-makers Kara DioGuardi and John Shanks, who would later produce her second album A Little More Personal (Raw). The song was recorded in Lohan's trailer on the set of Herbie: Fully Loaded in September 2004. She had been recording and filming the movie back-to-back. Kara DioGuardi and Cory Rooney, who wrote and produced Lohan's first single, provided background vocals for the song.

First (O'Bryan album)

F1RST is the fifth studio album by R&B singer O'Bryan, his first release in more than 20 years. It was released on O'Bryan's independent label, Headstorm, on Valentine's Day 2007.

Reception

The ballad-driven set derived its name from what O’Bryan calls “the first step of a new musical journey," highlighted by the songs "Just Like Doin' It," "Can I Kiss Your Lips," "Man Overboard," "Gotta Let You Go" and "Gratitude." Longtime fans of the singer welcomed his return and responded to "F1RST" with enthusiastic reviews on music buyer-driven sites such as Amazon and iTunes.

Track listing

Personnel

First (David Gates album)

First is the first solo album by David Gates of Bread. The musicians include: Jimmy Getzoff, Jim Gordon, Jim Horn, John Guerin, Larry Carlton, Larry Knechtel, Louie Shelton, Mike Botts and Russ Kunkel. Suite, Clouds & Rain is definitely worth a listen as Gates experimented with his sound.

Track listing

All tracks composed by David Gates