Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data. Christine is currently taking college astronomy. The instructor often gives quizzes. On the past seven quizzes, Christine got the following scores: 55, 18, 39, 20, 20, 44, 69

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

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation: