What is the z score of 2.13

Mathematics

2 answers:

RideAnS [48]3 years ago

7 0

42.60z. ...............

garri49 [273]3 years ago

3 0

The z score is 42.60z

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HELP ASAP

balandron [24]

Step-by-step explanation:

The whole angle is 132 and half of it is 76, so the other portion would be 56 i believe.

4 0

2 years ago

Evaluate the function for x = 3a. f(x)=2x^2-3x 4

Dmitry_Shevchenko [17]

Hello,

f(x)=2x^2-3x+4
f(3a)=2(3a)^2-3*(3a)+4=2*9a²-9a+4=18a²-9a+4

5 0

3 years ago

Which of the following tables is a relation that represents a function?

uysha [10]

The first one is not a function due to the rule that there can not be more than one x, such as there is a repeated number 1 , 2 , 1 , 4 There should not be two
x = 1 terms.

Same the same rule applies to the second option as well as the last.

Your answer is C. or the third option
x= 6, 5, 4, 1
y=6, 4, 6, 2

Hope this Helps

3 0

3 years ago

Barron's reported that the average number of weeks an individual is unemployed is 17.5 weeks. Assume that for the population of

Olin [163]

Answer:

$P(16.5$

And using the normal standard table or excel we find the probability:

$P(-1.768< Z< 1.768) = P(Z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the avergae number of weeks an individual is unemployed of a population, and for this case we know the distribution for X is given by:

$X \sim N(17.5,4)$