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Jobisdone [24]
3 years ago
7

Will mark the brainiest.

Mathematics
1 answer:
nataly862011 [7]3 years ago
7 0

Answer:

11.95

i think

Step-by-step explanation:

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The answer is B. :PPPPPPPPPP

5 0
3 years ago
Someone please help me!!! HELPPPP ASAPPPP!!!
BartSMP [9]

Answer:

I think it's 6.

Step-by-step explanation:

I think this because b is 62 leaving only 6 to become 68.

6 0
3 years ago
The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 330 grams and a standard deviati
just olya [345]

Answer:

Weights of at least 340.1 are in the highest 20%.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 330, \sigma = 12

a. Highest 20 percent

At least X

100-20 = 80

So X is the 80th percentile, which is X when Z has a pvalue of 0.8. So X when Z = 0.842.

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

0.842 = \frac{X - 330}{12}

X - 330 = 12*0.842

X = 340.1

Weights of at least 340.1 are in the highest 20%.

3 0
3 years ago
Help please Im bout to fail.....
max2010maxim [7]

Answer:

it's the second to last one on the right side

3 0
3 years ago
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What is the simplified value of the expression below?
polet [3.4K]

Answer:

C. 9

Step-by-step explanation:


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3 years ago
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