Grade 5 students extend probability to compound events using two-coin flips and tree diagrams. They count four equally likely outcomes and compute P(HH) = 1/4, P(at least one head) = 3/4, and similar fractions. Items also introduce outliers in small data sets and ask which measure (mean or median) is most affected. A matching task pairs ideas like bar graphs with category totals for Grade 5 reinforcement.
Style:
Probability and Statistics
Part A: Fill in the Blank
Write the missing word or number on each line.
1. When you flip 2 fair coins, the total number of equally likely outcomes is 4.
2. P(both heads) when flipping 2 coins = 1/4.
3. A tree diagram for flipping 2 coins has 4 branches at the second level total.
4. In the set 4, 5, 6, 7, 80, the value 80 is an outlier.
5. Removing the outlier 80 from 4, 5, 6, 7, 80 will most affect the mean (mean/median).
6. P(getting tails then heads) on 2 coin flips = 1/4.
7. P(at least one head) on 2 coin flips = 3/4.
8. A bar graph is best for comparing totals across categories.
9. A line plot is best for showing the frequency of repeated measurements.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
P(HH) on 2 coins
→ 1/4
1/4
Outlier in 2,3,4,50
→ 50
50
Best display: items per category
→ Bar graph
Bar graph
Best display: frequency of values
→ Line plot
Line plot
Probability and Statistics
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) When you flip 2 fair coins, the total number of equally likely outcomes is 4.
2) P(both heads) when flipping 2 coins = 1/4.
3) A tree diagram for flipping 2 coins has 4 branches at the second level total.
4) In the set 4, 5, 6, 7, 80, the value 80 is an outlier.
5) Removing the outlier 80 from 4, 5, 6, 7, 80 will most affect the mean (mean/median).
6) P(getting tails then heads) on 2 coin flips = 1/4.
7) P(at least one head) on 2 coin flips = 3/4.
8) A bar graph is best for comparing totals across categories.
9) A line plot is best for showing the frequency of repeated measurements.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
P(HH) on 2 coins
→ 1/4
1/4
Outlier in 2,3,4,50
→ 50
50
Best display: items per category
→ Bar graph
Bar graph
Best display: frequency of values
→ Line plot
Line plot
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10 Questions
10-15 minutes
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