Other tags that relate to X-dice
Equally likely outcomes. Conditional probability. Mathematical modelling. Spreadsheets. Theoretical probability. Experimental probability. Biology. Probability. Combining probabilities. Tree diagrams.There are 59 results
Broad Topics > Cross-curricular Contexts > Biology
Is Your DNA Unique?
Age 16 to 18
Challenge Level
Use combinatoric probabilities to work out the probability that you are genetically unique!
Stats Statements
Age 16 to 18
Challenge Level
Are these statistical statements sometimes, always or never true? Or it is impossible to say?
Bird-brained
Age 16 to 18
Challenge Level
How many eggs should a bird lay to maximise the number of chicks that will hatch? An introduction to optimisation.
Genetic Intrigue
Age 16 to 18
Dip your toe into the fascinating topic of genetics. From Mendel's theories to some cutting edge experimental techniques, this article gives an insight into some of the processes underlying. . . .
Predator - Prey Systems
Age 16 to 18
Challenge Level
See how differential equations might be used to make a realistic model of a system containing predators and their prey.
Core Scientific Mathematics
Age 14 to 18
Challenge Level
This is the area of the advanced stemNRICH site devoted to the core applied mathematics underlying the sciences.
Why Multiply When You're about to Divide?
Age 16 to 18
Challenge Level
A brief introduction to PCR and restriction mapping, with relevant calculations...
Chemnrich
Age 14 to 18
Challenge Level
chemNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of chemistry, designed to help develop the mathematics required to get the most from your study. . . .
Population Dynamics - Part 5
Age 16 to 18
Challenge Level
Fifth in our series of problems on population dynamics for advanced students.
Graphic Biology
Age 16 to 18
Challenge Level
Several graphs of the sort occurring commonly in biology are given. How many processes can you map to each graph?
Population Dynamics
Age 16 to 18
Challenge Level
This problem opens a major sequence of activities on the mathematics of population dynamics for advanced students.
Branching Processes and Extinction
Age 16 to 18
Challenge Level
An advanced mathematical exploration supporting our series of articles on population dynamics for advanced students.
Population Dynamics - Part 1
Age 16 to 18
Challenge Level
First in our series of problems on population dynamics for advanced students.
Population Dynamics - Part 2
Age 16 to 18
Challenge Level
Second in our series of problems on population dynamics for advanced students.
Population Dynamics - Part 3
Age 16 to 18
Challenge Level
Third in our series of problems on population dynamics for advanced students.
Population Dynamics - Part 4
Age 16 to 18
Challenge Level
Fourth in our series of problems on population dynamics for advanced students.
Population Dynamics - Part 6
Age 16 to 18
Challenge Level
Sixth in our series of problems on population dynamics for advanced students.
Population Ecology Using Probability
Age 16 to 18
Challenge Level
An advanced mathematical exploration supporting our series of articles on population dynamics for advanced students.
Population Dynamics Collection
Age 16 to 18
Challenge Level
This is our collection of tasks on the mathematical theme of 'Population Dynamics' for advanced students and those interested in mathematical modelling.
Drug Stabiliser
Age 16 to 18
Challenge Level
How does the half-life of a drug affect the build up of medication in the body over time?
Reaction Types
Age 16 to 18
Challenge Level
Explore the rates of growth of the sorts of simple polynomials often used in mathematical modelling.
Bionrich
Age 14 to 18
Challenge Level
bioNRICH is the area of the stemNRICH site devoted to the mathematics underlying the study of the biological sciences, designed to help develop the mathematics required to get the most from your. . . .
Choose Your Units
Age 14 to 16
Challenge Level
Which units would you choose best to fit these situations?
Approximately Certain
Age 14 to 18
Challenge Level
Estimate these curious quantities sufficiently accurately that you can rank them in order of size
Bigger or Smaller?
Age 14 to 16
Challenge Level
When you change the units, do the numbers get bigger or smaller?
Chi-squared Faker
Age 16 to 18
Challenge Level
How would you massage the data in this Chi-squared test to both accept and reject the hypothesis?
Blood Buffers
Age 16 to 18
Challenge Level
Investigate the mathematics behind blood buffers and derive the form of a titration curve.
Real-life Equations
Age 16 to 18
Challenge Level
Here are several equations from real life. Can you work out which measurements are possible from each equation?
Mathematical Issues for Biologists
Age 16 to 18
Challenge Level
STEM students at university often encounter mathematical difficulties. This articles highlights the 8 key problems for biologists.
Extreme Dissociation
Age 16 to 18
Challenge Level
In this question we push the pH formula to its theoretical limits.
Whose Line Graph Is it Anyway?
Age 16 to 18
Challenge Level
Which line graph, equations and physical processes go together?
Fitting Flat Shapes
Age 16 to 18
Challenge Level
How efficiently can various flat shapes be fitted together?
Catalyse That!
Age 16 to 18
Challenge Level
Can you work out how to produce the right amount of chemical in a temperature-dependent reaction?
Mixed up Mixture
Age 14 to 16
Challenge Level
Can you fill in the mixed up numbers in this dilution calculation?
Packing 3D Shapes
Age 14 to 16
Challenge Level
What 3D shapes occur in nature. How efficiently can you pack these shapes together?
Ratios and Dilutions
Age 14 to 16
Challenge Level
Scientists often require solutions which are diluted to a particular concentration. In this problem, you can explore the mathematics of simple dilutions
Investigating the Dilution Series
Age 14 to 16
Challenge Level
Which dilutions can you make using only 10ml pipettes?
Exact Dilutions
Age 14 to 16
Challenge Level
Which exact dilution ratios can you make using only 2 dilutions?
Alternative Record Book
Age 14 to 18
Challenge Level
In which Olympic event does a human travel fastest? Decide which events to include in your Alternative Record Book.
Robot Camera
Age 14 to 16
Challenge Level
Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?
The Genes of Gilgamesh
Age 14 to 16
Challenge Level
Can you work out the parentage of the ancient hero Gilgamesh?
A Question of Scale
Age 14 to 16
Challenge Level
Use your skill and knowledge to place various scientific lengths in order of size. Can you judge the length of objects with sizes ranging from 1 Angstrom to 1 million km with no wrong attempts?
Dilution Series Calculator
Age 14 to 16
Challenge Level
Which dilutions can you make using 10ml pipettes and 100ml measuring cylinders?
NRICH is part of the family of activities in the Millennium Mathematics Project.