Mary050 Mary050

03-01-2017
Mathematics

contestada

Suppose a brand of lightbulbs is normally distributed with a mean life of 1900 hours and a standard deviation of 50 hours. Find the probability that a lightbulb will last between 1825 hours and 1980 hours

Respuesta :

Аноним Аноним

03-01-2017

I am not sure exactly how to do it but based on my knowledge, I think the answer would be 1/38

Answer Link

Otras preguntas

15 2x 3 +5x 2 +6x+15

2 reasons why genetic engineering is bad

A soccer player kicks a ball, changing its momentum by 11 kg. M/s, The net force on the ball is 910 N. How long does the soccer player maintain contact with the

A) Draw a number line from 0 to 2. Then draw and label the points 2 and 0.2. B) use the number line to explain why 2 is 10 times the value of 0.2

Choose the best description for the real number 4 point 6 repeating

8 x 4 = (? × 7) - (? × 3)

What is the image of the point (5, -3) after a reflection over the line y = x? O (3,-5) O (-5, 3) O (-3,5) o (5, 3)

how a 300-N force can combine with a 100-N force on sled

Hello, I've been stuck on this Spanish Quiz for a while, getting the below the needed grade in order to pass and I'm not sure on how to do this.

What is one way that temperature affects mechanical weathering?