The figure shows a normal distribution curve with a mean of 3.47 and a standard deviation of 0.81. find the value of x, given that 80% of the values are greater than x

a)2.06

b)2.79

c)5.13

d)1.95

b) 2.79

Step-by-step explanation:

Use a calculator or table to find the z-score that corresponds to P(x<z) = 0.20.

z ≈ -0.84

z = (x − μ) / σ

-0.84 = (x − 3.47) / 0.81

x = 2.79

it’s supposed to be -4+45=41

step-by-step explanation:

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|