Complete the table A- 5, 6, 7, 8, 9 B- 3.8, 4.6, 5.4, , ,

2 answers:

Citrus2011 [14]3 years ago

5 0

The common difference of the data set of A is 1. While the common difference in the data set of B is 0.80

B.) 3.8 + 0.80 = 4.60
4.6 + 0.80 = 5.40
5.4 + 0.80 = 6.20
6.2 + 0.80 = 7.00

Ivenika [448]3 years ago

3 0

The next two are: 6.2, 7
The pattern is by adding .8 to the last number

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3 years ago

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Answer:

The 90% confidence interval is (0.1897, 0.2285).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

Z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$

For this problem, we have that:

From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-cigarette) in the past week. This means that $n = 1186, \pi = \frac{248}{1186} = 0.2091$