Start learning →

Rajasthan Board Class 10 (RBSE) Probability & Statistics — practice questions — page 3

Explore 72 free Probability & Statistics questions in Rajasthan Board Class 10 (RBSE) Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

Practise Probability & Statistics with Quill →

Probability & Statistics questions and exercises with answers

Showing questions 61–72 of 72.

True or false: parallel and perpendicularRead the answer and worked solution →Order the steps: test three points for collinearityRead 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 →Which test applies?Read the answer and worked solution →Flip and pair: condition with conclusionRead the answer and worked solution →Tap every statement true of slopeRead the answer and worked solution →Reading the definitions backRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Complete the angle between two linesRead the answer and worked solution →True or false: using coordinatesRead the answer and worked solution →

Worked practice questions

True or false: parallel and perpendicular

Read exercise and reference answers
Questions
  1. Statement is true
    Yes
    Statement
    Two lines are parallel if and only if their slopes are equal.
  2. Statement is true
    Yes
    Statement
    Two lines are perpendicular if and only if their slopes multiply to −1.
  3. Statement is true
    No
    Statement
    Perpendicular lines have equal slopes.
  4. Statement is true
    No
    Statement
    Parallel lines have slopes multiplying to −1.
  5. Statement is true
    Yes
    Statement
    Three points are collinear when slope AB equals slope BC.
Both tests are 'if and only if', so they run in both directions. Source: syllabus Maths, Ch 9 Straight Lines.

Open this exercise →

Order the steps: test three points for collinearity

Read exercise and reference answers
Steps
  1. Label the three points A, B and C
  2. Compute the slope of AB from the coordinate differences
  3. Compute the slope of BC the same way
  4. Compare the two slopes
  5. If they are equal, the three points are collinear
Two slopes, compared. Source: syllabus Maths, Ch 9 Straight Lines.

Open this exercise →

Assertion and reason

Read exercise and reference answers
Questions
  1. Reason
    Its two points share an x value, so the denominator would be zero.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    A vertical line has no slope.
  2. Reason
    Otherwise the difference in x is zero and the quotient is undefined.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    The slope formula requires x₁ ≠ x₂.
  3. Reason
    Parallel lines have equal slopes.
    Verdict
    The assertion is false and the reason is true.
    Assertion
    Perpendicular lines have equal slopes.
  4. Reason
    Equal slopes between successive pairs settle it arithmetically.
    Verdict
    Both are true; the reason explains the assertion.
    Assertion
    Collinearity can be tested without drawing anything.
The reason must genuinely explain the assertion. Source: syllabus Maths, Ch 9 Straight Lines.

Open this exercise →

How to practise

  1. Choose a Probability & Statistics question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Mathematics topics

SequencesBinomial TheoremGeometrySequences and SeriesVectors & 3D GeometryProbabilityCorrelation and RegressionLinear Programming