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Anika [276]
3 years ago
13

Use absolute value to express the distance between -12 and -15 on the number line

Mathematics
1 answer:
NARA [144]3 years ago
7 0
C
I-12-(-15)l
l-12+15l
l3l = 3
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Using the distributive property how can I rewrite the expression 4*24
liberstina [14]
You can do 2(2*12) or 4(1*6), personally I think the second one is better. Hope this helps!
6 0
3 years ago
223x12 please tell me I'm in my last question and dieing.
svlad2 [7]

Answer:

2,676

Step-by-step explanation:

2,676=223x12

7 0
3 years ago
A function of random variables used to estimate a parameter of a distribution is a/an _____.
CaHeK987 [17]

Answer:

A. unbiased estimator.

Step-by-step explanation:

In Statistics, an estimator is a statistical value which is used to estimate a parameter. Parameters are the determinants of the probability distribution. Therefore, to determine a normal distribution we would use the parameters, mean and variance of the population.

A function of random variables used to estimate a parameter of a distribution is an unbiased estimator.

An unbiased estimator is one in which the difference between the estimator and the population parameter grows smaller as the sample size grows larger. This simply means that, an unbiased estimator captures the true population value of the parameter on average, this is because the mean of its sampling distribution is the truth.

Also, we know that the bias of an estimator (b) that estimates a parameter (p) is given by; E(b) - p

Hence, an unbiased estimator is an estimator that has an expected value that is equal to the parameter i.e the value of its bias is equal to zero (0).

<em>Generally, in statistical analysis, sample mean is an unbiased estimator of the population mean while the sample variance is an unbiased estimator of the population variance.</em>

7 0
4 years ago
What is a real life world problem in mutiplying decimals. and please hurry gtg to be soon
Vinvika [58]
12.3 x 3.1= 38.13          Now go to bed lol
3 0
3 years ago
A researcher measures the correlation between the frequency of self-esteem (high,low)and health status (lean/healthy,overweight/
tresset_1 [31]

Answer: B) 0.28

Step-by-step explanation:

Given that:

Lean/Healthy Overweight/ ObeseSelf Esteem Low 18 32 High 32 18

                Overweight/Obese      Lean/Healthy               Total

Low          32                                   18                                 50

High         18                                    32                                50

Total         50                                   50                               100

the phi correlation coefficient is defined by Ф = √x²/n

where n = 100 ( total number of response )

x² = [(32×32 - 18×18)² × 100] / [50 × 50 × 50 × 50]

Ф = √ [(700)² x 100) / (50)⁴ × 100

Ф = 700 / 50²

Ф = 0.28

Therefore option B) is the correct answer

5 0
3 years ago
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