Contingency Tables (Grade 11 NSC Matric Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the main purpose of a contingency table?
What is the main purpose of a contingency table?
To organize data and test independence
How many possible combinations does a two-way contingency table show?
How many possible combinations does a two-way contingency table show?
Four
What is the most important first step when working with contingency tables?
What is the most important first step when working with contingency tables?
Complete the contingency table
For , what should the denominator be?
For , what should the denominator be?
Total females
For , what should the denominator be?
For , what should the denominator be?
Total participants
Events A and B are independent if and only if:
Events A and B are independent if and only if:
When testing independence, what do you compare?
When testing independence, what do you compare?
with
In Example 1, with 120 females and 50 positive, what is ?
In Example 1, with 120 females and 50 positive, what is ?
In Example 2, if 6 of 9 learners without cellphones are Grade 11, what is the probability?
In Example 2, if 6 of 9 learners without cellphones are Grade 11, what is the probability?
Which statement about denominators in probability calculations is correct?
Which statement about denominators in probability calculations is correct?
Conditional uses subset; joint uses total