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tigry1 [53]
2 years ago
11

The amount of time a certain brand of light bulb lasts is normally distributed with a

Mathematics
1 answer:
Alisiya [41]2 years ago
4 0

Answer:

23.47 %      ( or .2347)

Step-by-step explanation:

780    is    20/50 = .4   for z score - .4

810     is    10/50 = .2       z-score = .2

 Use z-score table         .5793 - .3446 = .2347     23.47%

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What is this please help?
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Answer:

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Step-by-step explanation:

The simpliest way to determine the slope of the line is to see the rise over run of the line. In this case, we are given two points which are at (0, -1) and (3,1)

By calculating rise of run, we can see that the starting point goes up by 2 units, from -1 to 1 and goes to the right 3 units, from 0 to 3

In this case, that means we have a slope of 2/3x.

The +b plays into the y-intercept of the line, which is actually the same of one of our points: (0,-1)

Since this number is a negative, it would actually be y = (2/3)x + (-1) which is the same as y=2/3x - 1

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2 years ago
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kupik [55]

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3 years ago
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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SashulF [63]

Answer:

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Hi there!

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