PETE 2061

Which of the following statements is true?

• The goal in approximation is to obtain a value that is exactly equal to a true value

• Fitting a decline curve model to the observed production rate in the field is an example of approximation

• A plot of observed (or historical) production rates versus time is an example of an approximation

• 
  All of the above

• None of the above

Which of the following statements is true?

• Accuracy is the measure of how closely a value agrees with a true value, while precision refers to how any two values or approximations agree with each other.

• Precision refers to how closely a value agrees with a true value.

• Accuracy refers to how any two values or approximations agree with each other.

• All of the above

• None of the above

Which of the following Python codes DOES NOT convert from a Python data type to an integer?

• y = int(100.0)

• b = 3.3
  b = int(b)

• z = float(10)

• x = int(10.3)

• a = int("1.3")

Which of the following will read in an input as a string and convert the string into a real number?

• 
  myInputNumber = input("Enter a number")
  myInputNumber = int(myInputNumber)

• myInputNumber = input("Enter a number")
  myInputNumber = float(myInputNumber)

• myInputStr = input("Enter a number")
  myInputNumber = int(myInputStr)

• myInputStr = input()
  myInputNumber = int(myInputNumber)

• myInputStr = input()
  myInputNumber = str(myInputStr)

Which of the following Python codes will fail with a syntax error?

• import math

  x = 2.0

  y = math.exp(x)

• import math as mt

  x = 2.0

  y = mt.exp(x)

• import numpy as np

  x = 2.0

  y = np.exp(x)

• import math as mat

  x = 2.0

  y = mat.exp(x)

• import math

  x = 2.0

  y = mt.exp(x)

myStr = "123456789"

Given the Python code above, which of the following codes will display "34"?

• print(myStr[3:4])

• print(myStr[1:3])

• print(myStr[2:4])

• print(myStr[2:3])

• print(myStr[3:5])

legends = ["Kareem", "MJ", "LeBron", "Kobe", "Shaq"]

Given the Python code above, which of the following codes will display ["MJ", "LeBron", "Kobe"]?

• print(legends[2:])

• print(legends[2:5])

• print(legends[:])

• print(legends[1:-1])

• print(legends)

tup1 = (1,2,3)

tup2 = (4,5,6)

tup3 = tup1

print(id(tup1)==id(tup3))

What does the Python code above display when run?

• True

• None of the above

• All of the above

• Error

• False

dictA = {"animal": ['dog', 'cat', 'rabbit'], "rank":[1,2,3]}

dictB = dictA.copy

dictC = dictA

dictC["speed"] = [70, 80, 90]

print(dictA["speed"])

The code above will

• give an error message because "speed" is not in dictA

• display [1, 2, 3]

• display [70, 80, 90]

• display ['1', '2', '3']

• display ['dog', 'cat', 'rabbit']

refers to the degree of imprecision and/or inaccuracy of a numerical computation.