Stats Safari Field Worksheet
Stats Safari
Park Field Expeditions • Real-World Data Log
Name: __________________________
Date: ____________ Team: ____________
1 Mission A: "How Long Until...?" (Wait-Time Trials)
Record seconds until each event occurs (10 trials)
Select target event: Person walks by Dog spotted Bike passes Car Other: ________
T-1
sec
T-2
sec
T-3
sec
T-4
sec
T-5
sec
T-6
sec
T-7
sec
T-8
sec
T-9
sec
T-10
sec
2 Mission B: Car Color Survey (Watch 20 Cars)
Categorical Data • Best for Mode & Frequency
White
Tallies:
Total: ____
Black
Tallies:
Total: ____
Silver/Gray
Tallies:
Total: ____
Red
Tallies:
Total: ____
Blue
Tallies:
Total: ____
Other
Tallies:
Total: ____
Total Cars Counted (Should be 20): _______ Outdoor Mode Color:
3 Mission C: Step Challenge (Prediction vs. Reality)
Predict steps to landmarks, then count actual steps
| Park Destination / Landmark | Predicted Steps | Actual Steps | Difference |
|---|
| Destination 1: ____________________________ | | | |
| Destination 2: ____________________________ | | | |
| Destination 3: ____________________________ | | | |
Field Check Before Heading Inside: Did you get all 10 wait times and all 20 car colors? All units verified!
The Data Lab
Analyze Real Data • Mean, Median, Mode & Range
Sample Size: n = 10 wait trials
1 Order Your 10 Wait-Time Values (Least to Greatest) Essential for finding Median and Range
2
Calculate The Big Four Summary Statistics
MODE Most frequent number
List repeated wait-time values (or write "None"):
Wait Mode =
RANGE Spread (Max − Min)
Show your subtraction work:
Range =
MEDIAN True physical middle
Average the 5th and 6th ordered values:
Median =
MEAN Fair share (Sum ÷ 10)
Add all 10 values and divide by 10:
Mean =
3 Car Color Distribution (Bar Graph) Shade 1 block per counted car up to your frequency
<table class="w-full border-collapse table-fixed select-none"><tbody><tr class="h-6 border-t border-slate-300 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">10 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">9 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">8 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">7 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">6 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">5 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">4 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">3 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b border-dashed border-slate-300"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">2 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr class="h-6 border-b-2 border-b-slate-700"><td class="w-10 text-right pr-2 text-xs font-bold text-slate-600 border-r-2 border-slate-700 leading-none align-middle">1 –</td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-slate-50/70"></td><td class="border-r border-dashed border-slate-300 bg-white"></td><td class="border-r border-dashed border-slate-300 bg-rose-50/30"></td><td class="border-r border-dashed border-slate-300 bg-blue-50/30"></td><td class="bg-amber-50/30"></td></tr><tr><td class="w-10 border-r-2 border-slate-700"></td><td class="text-center font-bold text-slate-700 text-xs pt-2">White</td><td class="text-center font-bold text-slate-700 text-xs pt-2">Black</td><td class="text-center font-bold text-slate-700 text-xs pt-2">Silver/Gray</td><td class="text-center font-bold text-rose-700 text-xs pt-2">Red</td><td class="text-center font-bold text-blue-700 text-xs pt-2">Blue</td><td class="text-center font-bold text-amber-700 text-xs pt-2">Other</td></tr></tbody></table>
Mode Color (Tallest Bar):
Least Frequent Color:
.
Stats Safari Presentation Slides
Outdoor Math Expedition
Grade Level Statistics
Stats Safari
Hunting Numbers in the Wild: Park Missions, Randomness & The Big Four
Mode Most Frequent
Median Physical Middle
Mean The Fair Share
Range Total Spread
Phase 1 • At The Park
Today's Real-World Missions
How Long Until...?
Time seconds until seeing 1 person walking by, dog, bike, or a car. 10 trials!
For Mean, Median, Range
Car Color Survey
Watch 20 cars pass by. Record each color to find the mode and build a bar graph.
For Mode & Bar Graphs
Step Challenge
Pick 3 park destinations. Predict your steps, then count actual steps taken.
For Prediction vs. Reality
Complete your field observations on Page 1 of your Safari sheet before returning to the lab!
Scientific Integrity
Rules of the Park Hunt
01
Define Your Event Before Timing
Agree on the exact observation (e.g., "A person walking across the path" or "Any red vehicle").
02
Reset the Stopwatch Every Trial
Start at zero seconds for each of your 10 wait trials. Do not let the timer accumulate!
03
Never Ignore an Outlier!
If a trial took 84 seconds or only 4 seconds, write it down honestly. Outliers tell great stories.
Collect all 10 wait trials and 20 car color observations with your group
Phase 2 • Back in Class
The Silent Human Number Line
Challenge: Each student takes one wait time. Without speaking, line up from smallest to largest!
Example Dataset in Seconds:
12
19
22
26
28
31
37
41
84
97
← Minimum (12s) Median = Midpoint of 28 & 31 (29.5s) Maximum Outlier (97s) →
Who represents the median? With 10 points, find the exact average of #5 and #6!
Statistical Toolkit
The Big Four Statistical Tools
MODE
Most Frequent
The category or number seen most often. Perfect for your Car Color Survey!
Can have one mode, multiple modes, or no mode at all.
RANGE