XY is formed by X(-9,-7) and Y (-3,5 is line j is the perpendicular bisector of XY

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation: