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oksano4ka [1.4K]
2 years ago
15

A. (2 + 4) + 5( − 1) − ( + 7)

Mathematics
1 answer:
Novay_Z [31]2 years ago
8 0
A) -6
b) 49
c)23
d)-47
e)73
f)20
g)131
h)-79
i)48
j) 68
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The probability of the stick's weight being 2.33 oz or greater is 0.0041 or 0.41%.

Step-by-step explanation:

Given:

Weight of a given sample (x) = 2.33 oz

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Standard deviation (σ) = 0.22 oz

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So, first, we will find the z-score of the distribution using the formula:

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z=\frac{2.33-1.75}{0.22}=2.64

So, the z-score of the distribution is 2.64.

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From the normal distribution table for z-score equal to 2.64, the value of the probability is 0.9959. This is the area to the left of the curve or less than z-score value.

But, we need area more than the z-score value. So, the area is:

P(z\geq  2.64)=1-0.9959=0.0041=0.41\%

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