Suppose the lengths of human pregnancies are normally distributed with \( \mu=266 \) days and \( \sigma=16 \) days. Complete parts (a) and (b) bel (a) The figure to the right represents the normal curve with \( \mu=266 \) days and \( \sigma=16 \) days. The area to the left of \( X=250 \) is 0.1587 . Pro Provide one interpretation of the area using the given values. Select the correct choice below and fill in the answer boxes to complete) (Type integers or decimals.) A. The proportion of human pregnancies that last more than \( \square \) days is \( \square \). B. The proportion of human pregnancies that last less than \( \square \) days is \( \square \).

a) Copy and complete the equation of the line of best fit below. Give any decimals in your answer to 1 d.p.

1) Observe o gráfico de setores ao lado: a) Calcule o ângulo central correspondente aos setore circulares de Futebol, Vôlei e Basquete. b) Se o ângulo central correspondente a "Outros" é igual a 18 quantos \% dos alunos responderam que preferem Natação? c) Se ao todo há 40 alunos no \( 7^{\circ} \) ano, calcule a quantidade de alunos por esporte: \( \frac{x+40}{00} \)

Write down the upper and lower quartiles. Upper Quartile = Lower Quartile = Question 3

3 Get a similar questlon You can retry this question below A sample of size \( n=10 \) is drawn from a population. The data is shown below. \( \begin{array}{lllll}102.8 & 115.4 & 98.2 & 96.2 & 93.3 \\ 115.4 & 81.8 & 76.1 & 115.4 & 88.9\end{array} \) What is the range of this data set? range \( =\begin{array}{ll}39.3\end{array} \) What is the standard deviation of this data set? (Round to 2 decimal places) stdev \( =16.03 \)

In a class, there are 750 learners in 1st year, 420 learners in 2 nd year. Draw a pie graph to represent the numbers of learners in these groups.