Unit 5 Advanced Worksheet

Data Analysis - 20 Challenging Questions

Basic Level

Unit 5: Data Analysis - Advanced Level

Practice worksheet with interactive questions

20 Questions•20-30 minutes

Instructions

Read each question carefully before answering
Take your time to think through each problem
You can change your answers before submitting
Click "Submit Answers" to see your results
Use hints if you need help understanding a question

Question 1

Word Problem

Test scores: 75, 80, 85, 90, 95. Calculate both the mean and median. Which is higher?

💡 Hint

Calculate both measures separately

Question 2

Multiple Choice

Data: 10, 12, 12, 15, 18, 20, 20, 20, 25. What are the mode and range?

Question 3

Fill In Blank

Sales pattern: Week 1-100, Week 2-150, Week 3-200, Week 4-250. Predict Week 6. ___

💡 Hint

Find the pattern and extend it two more weeks

Question 4

Word Problem

Survey of 200 students: 45% like math, 30% like science, 25% like art. How many more like math than art?

💡 Hint

Convert percentages to actual numbers first

Question 5

Multiple Choice

Data set: 5, 10, 15, 20, 100. Which measure is most affected by the outlier (100)?

Question 6

Fill In Blank

Temperature data: 60°, 62°, 64°, 66°, 68°. If pattern continues, what's temperature after 5 more measurements? ___

💡 Hint

Pattern adds 2 each time

Question 7

True False

If two data sets have the same range, they must have the same values.

Question 8

Word Problem

Plant heights (cm): 10, 15, 20, 25, 30. The mean is 20. If you add one more plant at 50 cm, what's the new mean?

💡 Hint

Add the new value and recalculate

Question 9

Multiple Choice

Population growth: Year 1-1000, Year 2-1200, Year 3-1440. What type of growth?

Question 10

Fill In Blank

Scores: 70, 75, 80, 85, 90, 95. To bring the mean to 85, what score is needed next? ___

💡 Hint

Calculate what total sum you need

Question 11

Word Problem

A store tracks daily sales. Mon-Fri average is 80. Weekend average is 120. What's the weekly average?

💡 Hint

Calculate total for all 7 days

Question 12

Multiple Choice

Data: 12, 15, 15, 18, 18, 18, 21, 21, 24. How many modes?

Question 13

Fill In Blank

Library visitors: Jan-200, Feb-180, Mar-160. If trend continues, which month reaches 100? ___

💡 Hint

Pattern decreases by 20 each month

Question 14

True False

A data set can have multiple modes (be bimodal or multimodal).

Question 15

Word Problem

Two classes: Class A has 20 students with mean score 80. Class B has 30 students with mean score 90. What's the combined mean?

💡 Hint

Find total points for each class first

Question 16

Multiple Choice

Rainfall: Spring-8in, Summer-4in, Fall-6in, Winter-10in. What percent is Summer's share?

Question 17

Word Problem

A graph shows steady increase from 50 to 90 over 4 weeks. What's the average weekly increase?

💡 Hint

Find total change and divide by number of weeks

Question 18

Fill In Blank

Data: 15, 20, 25, 30, 35. You remove the 35. How much does the mean change? ___

💡 Hint

Calculate mean before and after

Question 19

Multiple Choice

Comparing two products: A sells steady at 100/mo. B started at 40 but grows 15/mo. When does B surpass A?

Question 20

Word Problem

Survey: 35% chose A, 28% chose B, 22% chose C. What percentage chose other options?

💡 Hint

Percentages must total 100%

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