65 because if you put all the numbers in order and work out which one is in the middle you get the median. i enjoy using the rhyme. Hey diddle diddle, the medians the middle, you add then divide for the mean, the mode is the one that you see the most and the range is the difference between.
Answer:
C
Step-by-step explanation:
(x-3)+7
You would do 1/4 and get the answer plus 3/8s answer
Answer:
Precambrian period
Step-by-step explanation:
Since the Great oxidation period = 2.4 Billion years ago era = Precambrian period.
Micro-fossils attributed to cyanobacteria are abundant during the Proterozoic that came later 2,5 billion years ago and ended 540 million years ago,
Note for probability, if it will never happen the P = 0. If it must happen P = 1.
So certain to happen:
C. P=1
