Mathematics, 07.01.2021 18:00 dizzy1111
Mr. Hickman is trying to convince his middle school typing students that it is better to slow down when they are learning to type. He argues that students who type too quickly make too many errors. To prove his point, Mr. Hickman has students type a sample paragraph. He records their average typing speed (in words per minute), x, and the number of errors they made, y. The least squares regression line of this data set is: ŷ=0.905x–27.505 For an increase of one word per minute in typing speed, the least squares regression line predicts an increase oferrors while typing the sample paragraph.
Answers: 1
Mathematics, 21.06.2019 15:30, rishiganesh
Michelle had a birthday party. she bought a bag of candy with 96 starbursts, 72 hershey's, and 68 reese's. she wants to use all the candy she bought to make goody bags with the same amount of starbursts, hershey's and reese's in each bag. what is the largest number of bags she can make?
Answers: 1
Mathematics, 21.06.2019 17:30, grangian06
How many $20 bills do you need to have to make $280
Answers: 2
Mathematics, 22.06.2019 03:30, Sanchezj104
Use a calculator to verify that σ(x) = 62, σ(x2) = 1034, σ(y) = 644, σ(y2) = 93,438, and σ(x y) = 9,622. compute r. (enter a number. round your answer to three decimal places.) as x increases from 3 to 22 months, does the value of r imply that y should tend to increase or decrease? explain your answer. given our value of r, y should tend to increase as x increases. given our value of r, we can not draw any conclusions for the behavior of y as x increases. given our value of r, y should tend to remain constant as x increases. given our value of r, y should tend to decrease as x increases.
Answers: 3
Mr. Hickman is trying to convince his middle school typing students that it is better to slow down w...
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