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elena55 [62]
2 years ago
9

100 points 5 stars a a thanks

Mathematics
2 answers:
Ugo [173]2 years ago
8 0

Answer:

yes

Step-by-step explanation:

nika2105 [10]2 years ago
4 0

Answer:

thx

Step-by-step explanation:

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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
Select the correct answer. How can you write the expression 2 - (p + 6) in words? O A two minus the sum of p and six OB. two add
mezya [45]

Answer:

the correct one is the first option

Step-by-step explanation:

hope I'm helpful to you, please mark me as a brainlist

4 0
2 years ago
Write an equivalent expression to
mel-nik [20]
1. Distributive Property. 
<span>4(3a + 7) + 3(2a + 5)
12a + 28 + 6a + 20

2. Combine like terms
12a + 28 + 6a + 20
18a +48


The equivalent expression is 18a + 48. If a = anything then the expressions will still be equivalent. 
</span>
5 0
3 years ago
A local amusement park charges $20 for an admission fee and $5 for each ride.
german

Answer:

20+5x=

Step-by-step explanation:

3 0
3 years ago
N=3x45 write what n represents in the related division problem
Hitman42 [59]
One hundred thirty five 13%
6 0
3 years ago
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