In a certain normal distribution of scores, the mean is 50 and the standard deviation is 6. Find the z-score corresponding to a score
of 60
a. -1.67
b. 10.0
c. 1.67
d. 8.33

C is the correct 1.67

Step-by-step explanation:

In this question, we are asked to calculate the z-score corresponding to a particular score given the standard deviation and the mean.

Mathematically, the z-score can be calculated as

z-score = (x - mean)/Sd

from the question mean is 50, standard deviation is 6 and x is 60

Plugging these values, we have

z-score = (60-50)/6 = 10/6 = 1.67

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6