Other tags that relate to Stats Statements
Probability distributions, expectation and variance. Physics. Chemistry. Averages. Mathematical modelling. Random variables. Biology. Investigations. Maths Supporting SET. Theoretical probability.There are 13 results
Broad Topics > Handling, Processing and Representing Data > Averages
Stats Statements
Age 16 to 18 Challenge Level:
Are these statistical statements sometimes, always or never true? Or it is impossible to say?
Top Marks
Age 16 to 18 Challenge Level:
Can you make all of these statements about averages true at the same time?
Age 16 to 18 Challenge Level:
Given a probability density function find the mean, median and mode of the distribution.
Spread
Age 16 to 18 Challenge Level:
Given the mean and standard deviation of a set of marks, what is the greatest number of candidates who could have scored 100%?
Maximum Mean
Age 14 to 16 Short Challenge Level:
What is the largest that the mean of these numbers could be?
Statistical Shorts
Age 11 to 16 Challenge Level:
Can you decide whether these short statistical statements are always, sometimes or never true?
May the Best Person Win
Age 5 to 16
How can people be divided into groups fairly for events in the Paralympics, for school sports days, or for subject sets?
Wipeout
Age 11 to 16 Challenge Level:
Can you do a little mathematical detective work to figure out which number has been wiped out?
Changing Averages
Age 14 to 16 Short Challenge Level:
Find the value of $m$ from these statements about a group of numbers
Mediant Madness
Age 14 to 16 Challenge Level:
Kyle and his teacher disagree about his test score - who is right?
Searching for Mean(ing)
Age 11 to 16 Challenge Level:
If you have a large supply of 3kg and 8kg weights, how many of each would you need for the average (mean) of the weights to be 6kg?
For Richer for Poorer
Age 14 to 16 Challenge Level:
Charlie has moved between countries and the average income of both has increased. How can this be so?
NRICH is part of the family of activities in the Millennium Mathematics Project.