The management of an amusement park wanted to coaster. The following data represents a random sa
12, 17, 5, 13, 12, 7, 10, 8, 7
What is the standard deviation? Round your answer
a
1.3 minutes
4.0 minutes
С
3.5 minutes
d
3.8 minutes

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2

m a t h w a y. c o m

step-by-step explanation:

step-by-step explanation:

5

step-by-step explanation: