-12 = 2 + 5y + 2y
Can you me do the work

-2 =y

Step-by-step explanation:

-12 = 2 + 5y + 2y

Combine like terms

-12 =2+7y

Subtract 2 from each side

-12-2 = 2+7y-2

-14 = 7y

Divide each side by 7

-14/7 = 7y/7

-2 =y

A)The probability that the study participant selected at random is less than 66 inches tall is 0.1357

B)The probability that the study participant selected at random is between 66 and 71 inches tall is 0.152

C)The probability that the study participant selected at random is more than 71 inches tall is 0.7123

Step-by-step explanation:

A) Find the probability that a study participant has a height that is less than 66 inches.

We are supposed to find P(x<66)

Use z table :

So, P(z<-1.1)=0.1357

So, The probability that the study participant selected at random is less than 66 inches tall is 0.1357

B) Find the probability that a study participant has a height that is between 66 and 71 inches.

We are supposed to find P(66<x<71)

At x = 66

Use z table :

So, P(z<-1.1)=0.1357

At x = 71

Use z table :

So, P(z<0.56)=0.2877

P(-1.1<z<0.56)=P(z<0.56)-P(z<-1.1)=0.2877-0.1357=0.152

So,The probability that the study participant selected at random is between 66 and 71 inches tall is 0.152

C)Find the probability that a study participant has a height that is more than 71 inches

We are supposed to find P(x>71)

Use z table :

So, P(z<0.56)=0.2877

P(z>0.56)=1-P(z<0.56)=1-0.2877=0.7123

So,The probability that the study participant selected at random is more than 71 inches tall is 0.7123