Mathematics, 30.06.2020 01:01, abdirahmansoloman
Suppose several high schools in a city are sponsoring a walk-athon to raise money for a local charity. A certain route is mapped out through the city and each participant finds sponsors to donate money for the walk. If a participant completes the walk under a certain time, extra money will be donated. You are responsible for recording the finishing times for each of the participants. After collecting all of the data, you determine that the finishing times are normally distributed with a mean of 2.6 hours and a standard deviation of 0.3 hour. Answer the following questions in complete sentences.
1. What percent of the players finished the walk in less than 2 hours? Show your work.
2. What is the probability that two randomly chosen players completed the walk in 2.9 hours or more? Show your work.
3. What is the probability that four randomly chosen players completed the walk between 1.7 and 2.9 hours? Show your work.
4. What observations can you make about the number of participants who complete the walk in more than 3.5 hours, given that there are 1,200 participants?
5. What might you observe if the number of participants increased or decreased?
Answers: 3
Mathematics, 21.06.2019 12:50, Chartwig4576
Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.
Answers: 3
Mathematics, 21.06.2019 15:00, cupcakes5335
Abcd is a parallelogram. the diagram is not drawn to scale. if m
Answers: 2
Mathematics, 21.06.2019 23:00, jalenrussell321
The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.
Answers: 1
Mathematics, 22.06.2019 02:30, macybarham
In 2000 there were 100 rabbits in central park the population increased by 16% each year ? write a function to illustrate the situation. how many rabbits were in central park in 2005 . predict how many rabbits there will be at the end of this year we are in 2018?
Answers: 1
Suppose several high schools in a city are sponsoring a walk-athon to raise money for a local charit...
Mathematics, 04.08.2019 07:40
Mathematics, 04.08.2019 07:40
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History, 04.08.2019 07:40