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damaskus [11]
2 years ago
8

I need help on this and the person who answer this correctly gets a BRANLIST(answer if you know)​

Mathematics
1 answer:
masha68 [24]2 years ago
7 0
The anwser is c , you can’t make pie on on a graph
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The results of a common standardized test used in psychology research is designed so that the population mean is 145 and the sta
anygoal [31]

The value 155 is zero standard deviations from the mean, because x = μ , and therefore z = 0.

<h3>What is Standard Deviation?</h3>

The standard deviation is a measure of the amount of variation or dispersion of a set of values.

The key concept we need to manage here is the z-scores , and we can obtain a z-score using the next formula:

z = (x - μ)/σ      ..............[1]

Where

z is the z-score.

x is the raw score: an observation from the normally distributed data that we want standardize using [1].

μ is the population mean.

σ is the population standard deviation.

These standardized values have always the same probability in the standard normal distribution, and this is the advantage of using it for calculating probabilities for normally distributed data.

A subject earns a score of 155.

From the question, we know that:

x = 155.

μ = 155

σ = 50

Having into account all the previous information, we can say that the raw score, x = 155, is zero standard deviations units from the mean. The subject earned a score that equals the population mean. Then, using [1]:

z = (x - μ)/σ

z = (155 - 155) / 50

z = 0/50

z = 0

As we say before, the z-score "tells us" the distance from the population mean, and in this case this value equals zero:  

x = μ

Therefore, z = 0

So, the value 155 is zero standard deviations from the [population] mean.

Learn more about Standard Deviation from:

brainly.com/question/13905583

#SPJ1

8 0
2 years ago
Consider the following conditional statement:
IrinaVladis [17]

Answer:

a. contrapositive because it's the converse and inverse. True.

b. converse because it's the reverse of conditional statement. True.

c. That is false so it's not converse, inverse, or contrapositive.

6 0
3 years ago
there are 13 animals in the barn. some are chickens and some are pigs. there are 40 legs in all. how many of each animal are the
madreJ [45]
C=chicken
p=pigs
c+p=13~p=13-c (plug in)
2c+4p=40
2c+4(13-c)=40
2c+52-4c=40
-2c=-12
c=6
6+p=13
p=7
6 chickens
7 pigs
6 0
3 years ago
Read 2 more answers
What is 183 million in scientific notation?
AveGali [126]
1.83 x 10^8 this is in scientific notation.
4 0
3 years ago
Jason plans to pay the water bill with two equal payments. Water:35$ Gas 14$
inna [77]

Answer:

Equal 2 payments of 17.50$.

4 0
3 years ago
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