Question 21 SEAGULLS A biologist studying seagulls estimates that \( 5 \% \) of the seagulls in a flock have been banded. If 22 of the seagulls have been banded, approximately how many seagulls are in the flock? \( \begin{array}{ll}\text { A) } 110 \\ \text { B) } 440 \\ \text { C) } 1100 \\ \text { D) } 4400\end{array} \)

1. Estas interesado en detectar diferencias en tiempo promedio de programación de comerciales en horario estelar. Un estudio similar detecto una desviación estándar de 30 minutos. Quisieras calcular una muestra con una confiabilidad del \( 95 \% \) y un error máximo tolerable de 5 minutos en tus estimaciones. ¿Qué tan grande tiene que ser tu muestra?

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.

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

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 \( =16.03 \)

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