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inessss [21]
2 years ago
7

Need help as fast as possible please I will mark BRAINLIST only for correct answers :) Thank you!

Mathematics
2 answers:
zavuch27 [327]2 years ago
7 0

Answer:

a

Step-by-step explanation:

Reika [66]2 years ago
5 0
A, I can’t see any other photos sorry if this is incorrect.
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2 years ago
Question 6 The mineral content of a particular brand of supplement pills is normally distributed with mean 490 mg and variance o
AysviL [449]

Answer:

0.3085 = 30.85% probability that a randomly selected pill contains at least 500 mg of minerals

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean 490 mg and variance of 400.

This means that \mu = 490, \sigma = \sqrt{400} = 20

What is the probability that a randomly selected pill contains at least 500 mg of minerals?

This is 1 subtracted by the p-value of Z when X = 500. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{500 - 490}{20}

Z = 0.5

Z = 0.5 has a p-value of 0.6915.

1 - 0.6915 = 0.3085

0.3085 = 30.85% probability that a randomly selected pill contains at least 500 mg of minerals

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3 years ago
12. Translate “the sum of 6 and the product of 8 and x” into a mathematical expression
Shalnov [3]

Answer:

6+8x

Step-by-step explanation:

4 0
3 years ago
Which ordered pair is the solution to the system of equations?
postnew [5]
So first solve for x and y
add the 2 equations together

2x+x+y-y=-8-4
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divide by 3
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subsitute
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the solution is (x,y)  (-4,0) or D
7 0
3 years ago
Read 2 more answers
PLS HELP I WILL GIVE BRAINEST TO WHOEVER ANSWERS FIRST AND CORRECTLY I HAVE LIMITED TIME TO DO THIS!!
qaws [65]

Answer:

O 3+(-1)

Step-by-step explanation:

3 0
3 years ago
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