no, it was supposed to be ≤
check again
86 degrees
it's English
The probability of getting a tails on the tenth toss is 1/2. Previous results do not have any effect on future tosses. For the tenth toss, the odds are 1 out of 2 possible choices. The answer is significantly different if you ask what are the odds of tossing heads 10 times in a row.
The average of a data set is the sum of the values divided by the total number of values. The sum of the data values is 20,000 and there are 1,200 data values so the mean is 20000/1200 = 16.67
+1982 