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igor_vitrenko [27]
3 years ago
6

The following are a list of variables that will almost certainly vary across students in a large undergraduate introductory stat

istics course.
(a) Favorite beverage
(b) Year of birth
(c) Typing speed
(d) Handedness (e.g., left or right handed)
(e) Age
(f) Occupation
(g) Self-report of Assertiveness
For questions 1a to 1d that follow choose the variable or variables that best represent the level of measurement.
a) Which variables would typically be measured on a nominal scale of measurement?
b) Which variable would likely be measured on an interval, but not a ratio scale?c) Which two variables are most likely to be measured on a ratio scale?d) As typically measured, which variable represents at least an ordinal scale of measurement, but probably not a true interval scale?
Mathematics
1 answer:
Virty [35]3 years ago
3 0

Step-by-step explanation:

a. nominal scales

occupation

Favorite beverage

b. Interval but not ratio.

Typing speed

c. ratio scale.

age

Handedness (e.g., left or right handed)

d. Ordinal scale of measurement but not a true interval scale.

Self-report of Assertiveness

year of birth

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The equation of the hyperbola in standard form is \frac{(y-4)^{2}}{100}-\frac{(x-1)^{2}}{64}=1

Step-by-step explanation:

Let us revise the equation of the hyperbola

The standard form of the equation of a hyperbola with  center (h , k) and transverse axis parallel to the y-axis is  \frac{(y-k)^{2}}{a^{2}}-\frac{(x-h)^{2}}{b^{2}}=1

  • The length of the transverse axis is 2a  
  • The length of the conjugate axis is 2b  

∵ The center of the hyperbola is (1 , 4)

∴ h = 1 and k = 4

∵ The transverse axis is parallel to the y-axis

∴ The form of the equation is  \frac{(y-k)^{2}}{a^{2}}-\frac{(x-h)^{2}}{b^{2}}=1

∴ The length of the transverse axis is 2a  

∵ The length of the transverse axis is 20 units

- Equate 2a by 20 to find a

∴ 2a = 20

- Divide both sides by 2

∴ a = 10

∵ The length of the conjugate axis is 2b

∵ The length of the conjugate axis is 16

- Equate 2b by 16 to find b

∴ 2b = 16

- Divide both sides by 2

∴ b = 8

- Substitute the values of h, k, a, and b in the form of the equation

∴  \frac{(y-4)^{2}}{(10)^{2}}-\frac{(x-1)^{2}}{(8)^{2}}=1

∴  \frac{(y-4)^{2}}{100}-\frac{(x-1)^{2}}{64}=1

The equation of the hyperbola in standard form is \frac{(y-4)^{2}}{100}-\frac{(x-1)^{2}}{64}=1

Learn more:

You can learn more about the hyperbola in brainly.com/question/4054269

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