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sergejj [24]
3 years ago
9

Categorical or Quantitative (Numerical)?Airbnb is a large online marketplace for peopleto list, discover, and book unique accomm

odations around the world. This online service hasgrown into a multi-billion dollar industry that is even popular right here in Ames, IA. Classifyeach variable below as categorical or quantitative.(a) Month of the year with the most Airbnb reservations in Ames, IA.(b) Airbnb’s total annual profit. (c) Type of rental on Airbnb ( Type 1= whole house, Type 2 = private room, Type 3 = shared room, etc.). (d) Unique 10-digit reservation number for each Airbnb stay. (e) Number of house rentals available in a given county of Iowa.
Mathematics
1 answer:
makkiz [27]3 years ago
8 0

Answer:

a. Categorical

b. Quantitative

c. Categorical

d. Categorical

e. Quantitative

Step-by-step explanation:

a.

Month of year with most reservations is a qualitative or categorical variable because it can't be represented numerically in a meaningful way. For example, with most reservations month of a year can be June or July.

b.

Airbnb's  total annual profit is a quantitative variable because it can be presented in numerical form and mathematical operation can be meaningfully  interpreted.

c.

Type of rental on Airbnb is a qualitative or categorical variable because it can't be represented numerically in a meaningful way. Also, it can be divided into categories whole house, private room and shared room etc.

d.

Unique 10-digit reservation number is a qualitative or categorical variable as these exists in numerical form but these numbers are used only as identifiers. The  mathematical operation on these numbers can't be meaningfully be interpreted.

e.

Number of house rentals is quantitative variable because it can be presented in numerical form and mathematical operation can be meaningfully interpreted.

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nikklg [1K]

The equation for the path of the ball can be measured using a regression model calculator which produced the quadratic model ;

  • y(x) = - 16x² + 36x + 4
  • Height at x = 1.7 = 18.89 feets

<u>The table given</u> :

Time, x : __0.5 ___ 1 ____ 1.5 ____ 2

Height, y _ 18 ____22 ___ 24 ____ 12

<u>Using </u><u>technology</u><u> such as a </u><u>quadratic regression</u><u> calculator or </u><u>excel</u> ;

The quadratic regression model obtained is :

  • y(x) = - 16x² + 36x + 4

<u>The </u><u>height after, 1.7 seconds</u><u>, x = 1.7 can be calculated thus</u> :

Put x = 1.7 in the equation :

  • y(1.7) = - 16(1.7)² + 36(1.7) + 4
  • y = 18.89 feets

Therefore, the height of the baseball after 1.7 seconds will be 18.89 feets.

Learn more : brainly.com/question/22939512

5 0
2 years ago
Fifty percent of households say they would feel secure if they had​ $50,000 in savings. you randomly select 8 households and ask
Setler [38]

Step-by-step Answer:

"Fifty percent of households say they would feel secure if they had​ $50,000 in savings."  => population mean for satisfaction is 0.50.

N = number of household asked.

x = number of satisfied households.

Use binomial probability,

B(x,N,p) = C(N,x)*(p^x)*(1-p)^(N-x)

For 8 households and 3 questions (a), (b), and (c), we can tabulate all values of x and extract answers from there.

x   B(x,8,0.5)       cumulative probability

0  0.00390625  0.00390625

1  0.03125           0.03515625

2  0.109375        0.14453125

3  0.21875           0.36328125

4  0.2734375      0.63671875

5  0.21875           0.85546875

6  0.109375        0.96484375

7  0.03125          0.99609375

8  0.00390625  1.0

From the table, we see clearly that

(a) probability  P(x=5)=0.2188

(b) probability  P(x>5)=1-0.8555=0.1445

(c) probability  P(x<=5) = 0.8555

Note: All answers above have been rounded to the nearest 4 places of decimals.

5 0
3 years ago
One day, 148 copies of the student
Romashka-Z-Leto [24]

Answer:

312 copies

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100 + 100 = 200

40 + 60 = 100

8 + 4 = 12

200 + 100 + 12 = 312 copies

6 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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          A = bh/2
where b is base and h is height. Substituting the values,
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Since there are two bases, the contribution of the triangles for the surface area is,
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Next we calculate for the area of the triangle sides with length equal to b (same as the base of the triangle). 
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Hence, the surface area is,
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The value of b from the equation is 1.25 km

<em>ANSWER: 1.25 km</em>
4 0
4 years ago
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