Mathematics, 30.11.2020 23:40 kaelycaetano66
A statistician wants to determine the relationship between typing speed, in words per minute, and the time, in minutes, it takes to type one page of a specific book. Twenty-five trials are completed and the correlation coefficient between typing speed and time is determined to be -0.622. Therefore, slower typing speed was related to greater time. How is the correlation affected if the units for time are changed from minutes to seconds?
A. The correlation and time measurement would change proportionally to one another.
B. The correlation would stay the same because the change in units for time would have no effect on it.
C. The correlation would increase because changing the units for time would result in an increase in time values.
D. It is impossible to determine the amount of change experienced by the correlation.
E. The correlation would decrease because only the units for one of the variables changed.
Answers: 3
Mathematics, 21.06.2019 18:00, cgonzalez1371
Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.
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The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.
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Write the equation of the circle centered at (10,-2) with radius 2
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A statistician wants to determine the relationship between typing speed, in words per minute, and th...
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