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Alborosie
3 years ago
6

2. Circle R with center R(-1, 8) and radius 5

Mathematics
1 answer:
lawyer [7]3 years ago
7 0

Answer:

kjbkjfyih.gfifuigoguguohglhjgyufulhjlhugyfdd,jghkif;p

Step-by-step explanation:

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Can I get help I'm new
kvv77 [185]

Stratified random sampling is a method of sampling that involves the division of a population into smaller groups known as strata. In stratified random sampling or stratification, the strata are formed based on members' shared attributes or characteristics. Stratified random sampling is also called proportional random sampling or quota random sampling.

By contrast, simple random sampling is a sample of individuals that exist in a population; the individuals are randomly selected from the population and placed into a sample. This method of randomly selecting individuals seeks to select a sample size that is an unbiased representation of the population. However, it's not advantageous when the samples of the population vary widely.

6 0
3 years ago
Suppose weights of the checked baggage of airline passengers follow a nearly normal distribution with mean 46 pounds and standar
Alik [6]

Answer:

85.99% of airline passengers incur this fee.

Step-by-step explanation:

When the distribution is normal, we use 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.

Mean 46 pounds and standard deviation 3.7 pounds.

This means that \mu = 46, \sigma = 3.7

Most airlines charge a fee for baggage that weigh in excess of 50 pounds. Determine what percent of airline passengers incur this fee.

As a proportion, this is 1 subtracted by the pvalue of Z when X = 50. So

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

Z = \frac{50 - 46}{3.7}

Z = 1.08

Z = 1.08 has a pvalue of 0.8599

0.8599*100% = 85.99%

85.99% of airline passengers incur this fee.

3 0
4 years ago
What is t cubed times 4
Marina CMI [18]

Answer:

t^​3*​4

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The m&lt;6 = (11х + 8)° and m&lt;7 = (12x – 4)°<br> What is the measure of &lt;4
Travka [436]

Answer: m<4 = 40

Explanation: m< 6 = m< 7 (vertical angles)

11x + 8 = 12x – 4

12x - 11x = 8 + 4

x = 12

so

m< 6 = 11x + 8

m< 6 = 11(12) + 8

m< 6 = 132 + 8

m< 6 = 140

m<4 = 180 - m<6

m<4 = 180 - 140

m<4 = 40

answer

m<4 = 40

Have a good day buddy!

3 0
3 years ago
Myra bought a pair of jeans that cost $55. The sales tax rate is 10 percent. What is the total amount she paid for the jeans?
Semmy [17]
You need to calculate the sale tax and add it to the value of the pair of pants. The tax is calculated by multiplying the cost of the pants times the rate, i.e.tax = $55 * 10% = $55 * 10/100 = $ 55*0.1 = $ 5.5. Now sum this tax to the cost of the pants: $ 55 + $5.5 = $ 60.5. Then, the answer is $ 60.50
3 0
3 years ago
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