Other tags that relate to Stats Statements
Mathematical modelling. Chemistry. Physics. Theoretical probability. Maths Supporting SET. Probability distributions, expectation and variance. Averages. Random variables. Biology. Investigations.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?
Age 16 to 18
Challenge Level
Given a probability density function find the mean, median and mode of the distribution.
Top Marks
Age 16 to 18
Challenge Level
Can you make all of these statements about averages true at the same time?
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.