What is the probability of flipping a coin 75 times and getting tails 40 times or fewer? round your answer to the nearest tenth of a percent.
a. 5.3%
b. 99.7%
c. 32.2%
d. 75.6%

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice