Year 7 Statistics Practice
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Year 7 Statistics Practice
📊 Part 1: Measures of Central Tendency
Calculate the following:
a) Range: _______
b) Mode: _______
c) Median: _______
d) Mean: _______
Which measure of central tendency would best represent the team's typical score? Explain your reasoning.
🌿 Part 2: Stem-and-Leaf Plots
62, 74, 68, 85, 79, 91, 73, 66, 82, 77, 69, 88, 75, 84, 71
Complete the stem-and-leaf plot below:
a) What is the median score? _______
b) How many students scored above 80? _______
c) Describe the distribution of the scores:
🔍 Part 3: Statistical Investigation
a) What type of data will you collect? ________________
b) Suggest an appropriate sample size: ________________
c) How will you ensure your sample is representative?
Blue: 12 students, Red: 8 students, Green: 6 students, Yellow: 4 students
a) What percentage of students chose blue? _______
b) Write one conclusion you can draw from this data:
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