912 prompts matching "Why the absolute value is taken in mean deviation"
Explain Back: Estimating the median by interpolation (IGCSE/WAEC Revision)
I am in SS 2. Let me explain estimating the median by interpolation back to you in my own
Spot My Mistake: The variance of ungrouped data (IGCSE Marking)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Explain Back: The standard deviation of grouped data using class midpoints (IGCSE/WAEC Revision)
I am in SS 2. Let me explain the standard deviation of grouped data using class midpoints
Worked Example: The class boundaries used in a histogram (Show That / Hence Find)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Wa
Explain Back: The modal class read off a histogram (IGCSE/WAEC Revision)
I am in SS 2. Let me explain the modal class read off a histogram back to you in my own wo
Real-World Word Problem: Estimating the mode from a histogram (Exam Style)
I am in SS 2. Give me a real-world word problem on estimating the mode from a histogram, s
Spot My Mistake: Adding the frequencies down the column to make a cumulative table (IGCSE Marking)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Explain Back: The median read off an ogive (IGCSE/WAEC Revision)
I am in SS 2. Let me explain the median read off an ogive back to you in my own words, as
Explain Back: The complement of an event written as one minus p (IGCSE/WAEC Revision)
I am in SS 2. Let me explain the complement of an event written as one minus p back to you
Explain Back: Multiplying the probabilities of two independent events (IGCSE/WAEC Revision)
I am in SS 2. Let me explain multiplying the probabilities of two independent events back
Spot My Mistake: The angle at the centre and the angle at the circumference (IGCSE Marking)
I am in SS 2. I am revising for both my Cambridge IGCSE and my WAEC Mathematics papers. Sh
Explain Back: A chord and the perpendicular dropped from the centre (IGCSE/WAEC Revision)
I am in SS 2. Let me explain a chord and the perpendicular dropped from the centre back to
Spot my mistake: Filling a three-set diagram starting from the centre
Act as my SS2 Mathematics tutor. Work a question on filling a three-set diagram starting f
Spot my mistake: Showing probabilities rather than counts in a Venn diagram
Act as my SS2 Mathematics tutor. Work a question on showing probabilities rather than coun
Spot my mistake: Joining the points with a smooth curve or a ruler
Act as my SS2 Mathematics tutor. Work a question on joining the points with a smooth curve
Spot my mistake: Finding the circumference from the radius
Act as my SS2 Mathematics tutor. Work a question on finding the circumference from the rad
Spot my mistake: Rearranging the cosine rule to make cos A the subject
Act as my SS2 Mathematics tutor. Work a question on rearranging the cosine rule to make co
Spot my mistake: Labelling the sides of a right-angled triangle relative to an angle
Act as my SS2 Mathematics tutor. Work a question on labelling the sides of a right-angled
Spot my mistake: Writing the inequality for a vertical or horizontal boundary
Act as my SS2 Mathematics tutor. Work a question on writing the inequality for a vertical
Spot my mistake: The order in which the calculator applies operations
Act as my SS2 Mathematics tutor. Work a question on the order in which the calculator appl