1- statistic that tells the number of standard deviations a data value is below the mean is called
a- coefficient of variation b- standard score
2- the student's level of educaton is a..... Variable
a- ordinal b-nominal
3- if the numbers 0,1,2,3,4,6,8 represents the number of daily accidents in a given street during last month .
The frequncy table of 90 cars ...
A- has a total frequncy of 90
b- can be represented by bar chart
c- has seven classes
d- a,b and c
the spearman rank correlation cofficient can be calculated for .... Variables
a- continuous b- ordinal c- discete d- a,b and c
كلام احمد العم و سعيد الغامدي .... لو تفكر فيها السبيرمن بتاع كلو .. أنا غلط فيها
the standard normal probability distribution has
a- mean 1 .. Standard deviation 0
b- mean 0 ... Standard deviation 1