IB Maths AA HL Sl 4 3 Summary Statistics Questions

Practise calculating and interpreting mean, median, mode, grouped-data estimates, variance and standard deviation, including the effect of shifting or scaling data.

Exam points

Calculate and interpret mean, median and other measures of central tendency from data or summary information.
Calculate and interpret variance, standard deviation and measures of spread, including grouped or transformed data.
Use summary statistics to compare data sets and infer the effect of changes in observations or scale.

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Study SL 4.3—Summary statistics conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

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There are 75 players in a golf club who take part in a golf tournament. The scores obtained on the 18th hole are as shown in the following table.

Table for Question IB Maths AA HL Sl 4 3 Summary Statistics Questions question 1 — IB Maths AA HL

Calculate the mean score.

mean score $=\frac{2 \times 3+3 \times 15+4 \times 28+5 \times 17+6 \times 9+7 \times 3}{75}$
(M1)
$=\frac{323}{75}(=4.31)$

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IB Maths AA HL Sl 4 3 Summary Statistics Questions question 1