8.Each of the numbers 0 through 24 is written on a piece of paper and all of
the pieces of paper are placed in a hat. One number is selected at random. Determine the probability that the number selected is even.(Points:2) 13/25 13/24 11/24 1/2
9.Consider
Statistics Revision (Standard Level)
1.
One thousand candidates sit an examination. The distribution of marks is shown in the
following grouped frequency table.
Marks
Number of
candidates
(a)
110
1120
15
50
2130 3140 4150 5160 6170 7180 8190 91100
100
170
IB Math SL year 2
Descriptive Statistics - Measures of central tendency
Do we really need to review this? I guess but this is SO grade 9.
When collecting data and trying to summarize it and make sense of it, measures of central tendency are often
used. Li