Answer:

And the possible outcomes for this case are 25 or the successes and the total number of trials are 60 , if we replace we got:

The last step was because we divide 25/5 = 5 and 60/12 =5
Step-by-step explanation:
For this case we know that Olivia is practicing her free throw shot. Out of 60 shots, she makes 25 of them. We can use the empirical definition of probability given by:

And the possible outcomes for this case are 25 or the successes and the total number of trials are 60 , if we replace we got:

The last step was because we divide 25/5 = 5 and 60/12 =5
There is no solution.
If you divide both sides by -3 to get the variable isolated, it is
|s| = -6
Absolute value equations cannot equal negative numbers, so there is no solution.
Answer:
s = 19.7
Step-by-step explanation:
First we need to calculate the mean x' of the sample as:

We sum all the scores and divide them by the number of scores.
Then, the standard deviation s is calculated as:

We square every score less the mean, sum every value, then divide that by the number of scores less 1 and finally, we calculate the square root.
So, the standard deviation of the sample is 19.7