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COMEDK Correlation and Regression — practice questions — page 3

Explore 88 free Correlation and Regression questions in COMEDK Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Correlation and Regression questions and exercises with answers

Showing questions 61–88 of 88.

The Historical NoteRead the answer and worked solution →Flip and pair: notation with meaningRead the answer and worked solution →Order the reasoning: from a partition to a posteriorRead the answer and worked solution →Tap every quantity that is a probabilityRead the answer and worked solution →Spot the odd one outRead the answer and worked solution →Assertion and reason: the multiplication ruleRead the answer and worked solution →True or false: the Historical NoteRead the answer and worked solution →Sort each statement by which idea it describesRead the answer and worked solution →Complete the arc length relationRead the answer and worked solution →Match each identity to its nameRead the answer and worked solution →The Pythagorean identitiesRead the answer and worked solution →Odd function or even function?Read the answer and worked solution →Complete the degree and radian conversionRead the answer and worked solution →True or false: identities and parityRead the answer and worked solution →Match each sum or difference formula to its resultRead the answer and worked solution →Signs in the expansionRead the answer and worked solution →Which formula does this belong to?Read the answer and worked solution →True or false: periodicityRead the answer and worked solution →Complete the complementary angle rulesRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Order the steps: convert degrees to radiansRead the answer and worked solution →Flip and pair: identity with its valueRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Tap every correct identityRead the answer and worked solution →Radians and degreesRead the answer and worked solution →True or false: reading the identitiesRead the answer and worked solution →

Worked practice questions

The Historical Note

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Questions
  1. Question
    Who is credited with the axiomatic theory of probability?
    Choices
    1. Galileo
    2. Huygens
    3. Kolmogorov
    Correct choice
    Kolmogorov
  2. Question
    Ars Conjectandi was written by
    Choices
    1. Jacob Bernoulli
    2. Pascal
    3. Fermat
    Correct choice
    Jacob Bernoulli
  3. Question
    The Pascal-Fermat letters were written around
    Choices
    1. 1477
    2. 1654
    3. 1713
    Correct choice
    1654
  4. Question
    Which distribution is credited to Jacob Bernoulli?
    Choices
    1. Normal
    2. Poisson
    3. Binomial
    Correct choice
    Binomial
Dates and works exactly as syllabus records them. Source: syllabus Maths Part II, Ch 13 Probability.

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Flip and pair: notation with meaning

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Matching pairs
  1. A
    P(E|F)
    B
    probability of E given F
  2. A
    P(E ∩ F)
    B
    both E and F occur
  3. A
    P(E ∪ F)
    B
    E or F occurs
  4. A
    E′
    B
    E does not occur
  5. A
    S
    B
    the sample space
The chapter's notation. Source: syllabus Maths Part II, Ch 13 Probability.

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Order the reasoning: from a partition to a posterior

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Steps
  1. The sample space is split into disjoint causes
  2. Each cause carries a prior probability
  3. Each cause makes the observation more or less likely
  4. Adding the branches gives the overall chance of the observation
  5. One branch divided by that total is the revised chance of that cause
This is Bayes' theorem told as a sequence rather than a formula. Source: syllabus Maths Part II, Ch 13 Probability.

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