glowxtheminecrafter glowxtheminecrafter

07-01-2020
Mathematics

contestada

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

Respuesta :

MathPhys MathPhys

07-01-2020

Answer:

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

Answer Link

Otras preguntas

In a random sample of 50 undergraduate students at a college, it was found that 44 students regularly access social networking websites from their college libra

A blimp provides aerial television views of a football game. The television camera sights the stadium at a 7 degree angle of depression. The altitude of the b

Why did Britain, France and the United States not stop fascist aggression in the 1930's?

can someone help in algebra 2 for gradpoint?

A well-written letter should be all of the following except a. concise. b. timely. c. rhetorical. d. accurate.

What was the short-term effect of the introduction of installment plans on the U.S. economy? A. Unemployment rose as fewer new products needed to be made. B.

ach week, you drive 150 miles. Your car gets 25 miles to the gallon, and gas prices are $3 per gallon. How much gas money will you spend on gas each week?

Kalon and his friend Marna own a chimney sweep service company. Working together, they can clean a chimney in 1 5/7 hours. If it takes Kalon 4 hours to clean a

How are scale drawings used in everyday life?

The description below represents Function A and the table represents Function B. Function A The function is 8 more than 3 times x. Function B x y -1 2 0 5 1 8 W