If the variance of a variable is 81, what is the standard deviation? (This is a reading assessment question. Be certain of your answer because you only get one attempt on this question.)
The standard deviation is
(Type an integer or decimal rounded to two decimal places as needed.)

I'll give brainliest if you answer right : )

What is the y intercept of f(x)=(1/2)^x?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?