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rosijanka [135]
3 years ago
14

Apply the distributive property to create an equivalent expression. ( 1 − 2 g + 4 h ) ⋅ 5 =

Mathematics
1 answer:
mina [271]3 years ago
8 0

Answer:

{(1-2g) + 4h] x 5 =

Step-by-step explanation:

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A normal distribution has a standard deviation equal to 39. What is the mean of this normal distribution if the probability of s
Naily [24]

Answer:

The mean is \mu = 131

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:

\sigma = 39

What is the mean of this normal distribution if the probability of scoring above x = 209 is 0.0228?

This means that when X = 209, Z has a pvalue of 1-0.0228 = 0.9772. So when X = 209, Z = 2.

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

2 = \frac{209 - \mu}{39}

209 - \mu = 2*39

\mu = 209 - 78

\mu = 131

The mean is \mu = 131

7 0
3 years ago
29. What If? In addition to his meal, Stephen orders a fruit salad
bekas [8.4K]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
What is the value of the expression |-7+ |-4/?
KonstantinChe [14]

Answer:

11

Step-by-step explanation:

8 0
3 years ago
788.53 expressed to the neareast whole number​
boyakko [2]

Answer:

789

.5 is a 5 or larger so the 8 goes to a 9

Step-by-step explanation:

8 0
3 years ago
Rewrite 50 - 15 using the distributive property and a common factor
Vesna [10]
It is not too difficult. Just do this
50-15
5(10-3)
The answer is 5(10-3)
4 0
3 years ago
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