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In 2017, Uber unveiled a tip feature on its app to allow customers to leave their driver a tip. It turns out many customers do not leave a tip. According to a study conducted by Bharat Chandar, Uri Gneezy, John A. List, and Ian Muira with the University of Chicago, only about 16% of rides end with a tip. The study also found that 60% of Uber customers never tip, while 1% always leave a tip. List's study included 40 million trips in the cities of Chicago, Boston, San Francisco, Salt Lake City, Asheville, North Carolina, and Bloomington, Indiana.List's study found the average of those who do tip is .11, about 26% of their fare. The survey found that customers were more likely to tip between 3 to 5 a.m., as well as around 6 p.m. on Fridays; that female drivers, especially younger females, were more likely to earn tips; and that 5-star drivers were twice as likely to earn a tip as a 4.75-star driver.So should you tip? That is up to you, but know that according to the 992

JACKSON, Miss. — Days and days of heavy rain have forced authorities managing dams in Mississippi and Tennessee to release more water, worsening the flooding for people living downstream. Dramatic video posted by a Tennessee fire department showed the impact: Two houses tumbled down a bluff over the Tennessee River, while many others have been swamped to their rooftops. Entire neighborhoods have disappeared in muddy water below the Tennessee Valley Authority's Pickwick Reservoir. In Mississippi, people in and around the capital of Jackson are bracing for more flooding as the rain-swollen Pearl River is expected to crest on Monday. 651

Law enforcement officials on Sunday identified the man who killed seven people and wounded 22 others in a shooting spree in West Texas as Seth Ator, 36.Ator was arrested in 2001 for criminal trespass and evading arrest, both misdemeanors, according to public records. Adjudication was deferred, though the details of the case were not immediately available. His record also includes a 2018 traffic citation for a federal motor carrier safety violation, according to Ector County court records.Ator was pulled over by Texas troopers in Midland on Saturday afternoon for failing to use his signal, police said. He then shot at them with what police described as an AR-type weapon and sped away. Driving on streets and the highway, he sprayed bullets randomly at residents and motorists, police said.The man then hijacked a postal truck and ditched his gold Honda, shooting at people as he made his way into Odessa about 20 miles away. There, police confronted him in a movie theater parking lot and killed him in a shootout.Among the wounded were a 17-month-old girl and three law enforcement officers, hospital and police officials said.It's unclear what his motive was. Authorities say they believe the shooter acted alone.The attack during the busy Labor Day weekend put people on edge 1299

JT Lewis, the brother of 6-year-old Jesse Lewis who was killed in the Sandy Hook shooting, is running for Connecticut state senate.He'll be challenging Republican state Sen. Tony Hwang, who is in his third term representing the state's 28th district -- which includes Newtown, where the massacre took place.In his campaign video, which was released on Monday, Lewis said he and his mom reached out to Hwang to "help prevent future tragedies" but never heard back."On December 14, 2012, a shooter entered my brother's classroom, fired bullets until the gun jammed," Lewis says in the video. "Jesse yelled for his classmates to run, while he stood behind to defend his teacher. Nine of his friends ran, Jesse is credited with saving nine lives."Lewis says in the video he's running for senate to honor his little brother who lost his life."I share his story because I believe that inside every single one of us is that same innate courage we never even knew we had, to do something extraordinary." 1007

Jack Goldsmith (right) stands next to his stepfather, Chuckie O'Brien. Goldsmith is the author of a new book "In Hoffa's Shadow" where he writes that the feds know who killed Hoffa but won't reveal the suspect. 223

来源：资阳报