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pychu [463]
3 years ago
15

HELP ME WITH 6 PLEASE!!!!!

Mathematics
1 answer:
valkas [14]3 years ago
6 0
The awnsers is C hope this helps
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Consider a normal distribution with mean 23 and standard deviation 7. What is the probability a value selected at random from th
Trava [24]

Answer:

0.5 = 50% probability a value selected at random from this distribution is greater than 23

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 = 23, \sigma = 7

What is the probability a value selected at random from this distribution is greater than 23?

This is 1 subtracted by the pvalue of Z when X = 23. So

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

Z = \frac{23 - 23}{7}

Z = 0

Z = 0 has a pvalue of 0.5

0.5 = 50% probability a value selected at random from this distribution is greater than 23

5 0
3 years ago
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Imagine that there are currently three major cell phone service providers available in the United States. The largest one has en
erik [133]

Answer:

explanation below

Step-by-step explanation:

Large companies in most cases, buy other smaller firms to benefit from their products or to snap up the talents they have in their system. There are also cases in which such acquisitions are made to destroy competition the smaller companies present.  

This form of acquisition can be termed “killer acquisition as the larger group tends to terminate the projects of the smaller companies and shelve whatever competing innovative projects they have before they can hit the markets with them.  

This type of scenario is known to be quite pervasive and could in some ways be very detrimental to the society. When competition is eliminated, people buy whatever they see with no alternatives around and in most cases, they pay exorbitant amount of money for telco products and services.  

3 0
3 years ago
Find the sum of the measures of exterior angles, one at each vertex, of an octagon.
hjlf
A rule of polygons is that the sum<span> of the </span>exterior angles<span> always equals 360 degrees, but lets prove this for a regular </span>octagon<span> (8-sides). First we must figure out what </span>each<span>of the interior </span>angles<span> equal. To do this we use the </span>formula<span>: ((n-2)*180)/n where n is the number of sides of the polygon</span>
3 0
3 years ago
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What number is 15 % of 45.4 ?
Fantom [35]
15% of 45.4=6.81 this is the final answer
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3 years ago
Which of the following is an appropriate measure of central tendency to apply
Serhud [2]

Answer:

Mean and Median

Step-by-step explanation:

5 0
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