Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 100 eligible voters aged 18-24 are randomly selected. Suppose a previous study showed that among eligible voters aged \( 18-24,22 \% \) of them voted. Probability that fewer than 28 voted The probability that fewer than 28 of 100 eligible voters voted is \( \square \). (Round to four decimal places as needed.)

Which one of the following hypotheses is/are valid? 1. \( H_{0}: \mu \leq 100 ; H_{1}: \mu \geq 100 \) 2. \( H_{0}: \mu=120 ; H_{1}: \mu \neq 120 \) 3. \( H_{0}: \mu \neq 130 ; H_{1}: \mu=130 \) 4. \( H_{0}: \bar{X} \leq 210 ; H_{1}: \bar{X}>210 \) 5. \( H_{0}: p \neq 0.42 ; H_{1}: p=0.42 \)

tercice 5. Soit \( n \in \mathbb{N}^{*} \). On définit la relation \( \mathcal{R} \) sur \( \mathbb{C} \) par: \( z \mathcal{R} z^{\prime} \Leftrightarrow z^{n}=z^{\prime n} \) Montrer que \( \mathcal{R} \) est une relation d'équivalence. Soit \( \mathrm{a} \in \mathbb{C}^{*} \). Déterminer la classe d'équivalence de a note \( \mathrm{cl}(\mathrm{a}) \). En déduire les classes \( \mathrm{cl}(1+\mathrm{i}) \) et \( \mathrm{cl}(-1+i \sqrt{3}) \) pour \( \mathrm{n}=3 \) et \( \mathrm{n}=4 \).

1.2 Amir plans to sell the tour packages for R6 500 each. 1.2 .1 Write an equation for Amir's total income.

suelve los siguientes problemas. Un terreno rectangular tiene un perimetro de 70 m Siel largo del terreno es de 15 m , ¿cusl es su

1. Answer the following questions. a. Analyze What external conflict confronts the characters who are charged with witchcraft? b. Make Inferences What internal conflicts do the accused most likely face? Explain, citing textual details.