Mathematics, 03.03.2021 01:00 sydchann582
The lifetimes of light bulbs are normally distributed with a mean of 500 hours and a standard deviation of 25 hours. How long would a lightbulb need to last to be in the top 1% of lifetimes
Answers: 2
Mathematics, 21.06.2019 15:30
The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?
Answers: 2
Mathematics, 21.06.2019 22:00
Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.
Answers: 1
Mathematics, 22.06.2019 00:50
D. in a discrete probability distribution, the sum of the probabilities for the discrete variables will be > 1. true or false
Answers: 1
Mathematics, 22.06.2019 02:30
In one month jillian made 36 local phone calls and 20 long-distance calls what was her ratio of local calls to long-distance calls for that month?
Answers: 1
The lifetimes of light bulbs are normally distributed with a mean of 500 hours and a standard deviat...
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