Lisa's score on the stats midterm was 90 points. the class average was 76 and the standard deviation was 77 points. what was her z-score?

as posted: 0.18182

more likely: 2.00

Step-by-step explanation:

z = (x -μ)/σ

... = (90 -76)/77 = 14/77 = 2/11

z ≈ 0.18182

We know that cutting and pasting often results in numbers being unintentionally repeated, so your 77 may be intended to be 7. In that case, the z-score is

... z = (90 -76)/7 = 14/7

z = 2

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.