1) 5.4 +(-9.7)
Find the sum

-4.3

Step-by-step explanation:

5.4 +(-9.7)

+(-9.7) means -9.7, so that simplifies to -9.7

5.4-9.7

(this is how I do this, but you could do it the other way too.)

Since 9.7 is greater than 5.4, subtract 5.4 from 9.7

you get 4.3

Remember, 9.7 is negative!

so your answer is -4.3

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

55/i dont know i do it for the points

step-by-step explanation: