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Sophie [7]
2 years ago
15

How to find z scores

Mathematics
1 answer:
AURORKA [14]2 years ago
8 0

The formula for calculating a z-score is is z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation

You can refer to this link for an example:

brainly.com/question/10334874?referrer=searchResults

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Write an equivalent expression for 4.5x(2 - 6)
ki77a [65]

4.5x(2 - 6) \\  \\ 1. \: 4.5x \times  - 4 \\ 2. \:  =  - 18x

5 0
2 years ago
Read 2 more answers
Find the point estimate for the true difference between the given population means. Round your answer to three decimal places.
uranmaximum [27]

Answer:

Point Estimate for different between population means = - 0.99

Step-by-step explanation:

We are given data of two samples and we have to find the best point estimate of the true difference between two population means. Remember that in absence of data about population the best estimator is the sample data. So, we will find the means of both sample data and find the difference of that means. This difference between the means of sample data will be the best point estimate for the true difference between the population means.

Formula to calculate the mean is:

Mean=\frac{\text{Sum of Values}}{\text{Number of Values}}

Mean of Sample 1:

Mean=\frac{1414}{11}=128.55

Mean of Sample 2:

Mean=\frac{1684}{13}=129.54

Therefore the best point estimate for difference between two population means would be = Mean of Sample 1 - Mean of Sample 2

= 128.55 - 129.54

= - 0.99

8 0
2 years ago
In AMNO, m = 540 inches, n = 330 inches and o=600 inches. Find the measure of
MaRussiya [10]

Answer: 83.5

Step-by-step explanation:

5 0
3 years ago
Help please !!!!!!!!!!!!
Anastasy [175]

Answer:

X=10 and

y = 5 \sqrt{3}

4 0
2 years ago
Need help with math. I will give brainliest!!!!!!
Mice21 [21]

Answer:

~~

Step-by-step explanation:

Ok so first 2.4 will have to be changed to 24 which means we multiplied it by ten making it 24/10 since it is tan it is opposite side/ adjacent side so your one of your legs will be 24 and one will be 10. Now we just plug that into the Pythagorean Theorem to find the hypotenuse and we get 26. The area is 24b10/2=120 the area is 120.

Leg a= 24

Leg b= 10

Hypotenuse=26

Area=120  

Read more on Brainly.com - brainly.com/question/12450752#readmore

5 0
3 years ago
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