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docker41 [41]
3 years ago
11

In each of the following scenarios, define the type of measurement scale. 1. A kindergarten teacher marks whether each student i

s a boy or a girl. a. Ratio b. Nominal c. Interval d. Ordinal2. A ski resort records the daily temperature during the month of January. a. Ratio b. Nominal c. Interval d. Ordinal3. A restaurant surveys its customers about the quality of its waiting staff on a scale of 1 to 4, where 1 is poor and 4 is excellent. a. Ratio b. Nominal c. Interval d. Ordinal
Mathematics
1 answer:
GrogVix [38]3 years ago
5 0

Answer: 1.  b. Nominal

2. c. Interval

3. d. Ordinal

Step-by-step explanation:

The four level of measurement scales are :

  • Nominal scale : This is used to categorize a data on according tothe attributes such as Gender , color , religion etc.
  • Ordinal scale : This used when we can set the data in an order or according to their ranks such as First , Second , Third and so on.
  • Interval scale : In this , variables are measured as actual value . For example : 0° Celsius temperature does not mean there is no temperature.
  • Ratio scale : It categorize , orders , measure difference and also has a true meaning to zero.  For ex : Age.

1. A kindergarten teacher marks whether each student is a boy or a girl.

→ A <u>nominal scale</u> is used since teacher categorized the student as boy or girl.

2. A ski resort records the daily temperature during the month of January.

→ An <u>interval scale</u> is used , because temperature is measured in actual value and have no true meaning of 0 degree temperature .

3. A restaurant surveys its customers about the quality of its waiting staff on a scale of 1 to 4, where 1 is poor and 4 is excellent.

→ An <u>ordinal scale</u> is used since the quality of food will get a rank from 1 to

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MrRissso [65]

Answer:

- The probability that overbooking occurs means that all 8 non-regular customers arrived for the flight. Each of them has a 56% probability of arriving and they arrive independently so we get that  

P(8 arrive) = (0.56)^8 = 0.00967

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Now take the scenario that the second person didn't arrive and the remaining 7 did. The odds would be  

(0.56)(1-0.56)(0.56)^6 = (1-.56)*(.56)^7. You can run through every scenario that way and see that each time the odds are the same. There are a total of 8 different scenarios since we can choose 1 person (the non-arriver) from 8 people in eight different ways (combination).  

So the overall probability of an exact booking would be [(1-.56)*(.56)^7] * 8 = 0.06079

- The probability that the flight has one or more empty seats is the same as the probability that the flight is NOT exactly booked NOR is it overbooked. Formally,  

P(at least 1 empty seat) = 1 - P(-1 or 0 empty seats)  

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Hope that helps!

Have a great day :P

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