maths Christmas exam 2023 Flashcards
how do you find the volume of the Cylinder
Pie x Radis squared x Height
how do you find height in the cylinder for volume with both pie
cancel pie and put the Radis squared under the volume to divide and you have your answer
how do you find height in the cylinder for volume with one pie
times pie by the Radis, and put it under the volume to divide it
how do you find Radis in the cylinder for volume with pie in the volume
cancel the pie and because the Radis is squared you square root the volume with the height under the volume dividing it.
how do you find Radis in the cylinder for volume
times height by pie and square root the volume of the cylinder with the height and pie answer under it dividing them.
what do you have to do if you want minutes but the number is to 100
times the decimal point by 60
what is statistics
a branch of mathematics that deals with collecting information and representing and interpretation of data.
what is data
the information obtained from the experiment
what is categorical data
can be put into groups or categories
example of categorical data
favourite colour
what are the different types of categorical data and what do they do
Nominal data: has no ranks
Ordinal data: has to be in order
what is Numerical data
are normally countable or measured
an example of Numerical data
what is your height or how many siblings you have
what are the two different types of Numerical data and what do they do
discrete: only takes one certain value it is value that can be counted in numbers e.g. number of people
Continuous: data that takes any value with in range data is measured in height, time etc.
what is a census in gathering data
collecting data from a whole population
