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

Question

Mathematics

Ferguson

27 March, 09:48

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

+5

Answers (1)

Know the Answer?

Kathryn · Answer 1

b) 2.79

Step-by-step explanation:

Use a calculator or table to find the z-score that corresponds to P (x
z ≈ - 0.84

z = (x - μ) / σ

-0.84 = (x - 3.47) / 0.81

x = 2.79

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 xa) 2.06b) 2.79c) 5.13d) 1.95

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