Statistics Questions & Answers

8 । তোমাদের বিদ্যালয়ের ৭ম শ্রেণির ৩০ জন ছাত্রীর ওজন (কেজিতে) নিচে দেওয়া হলো- ৪০, ৫৫, ৪২, ৪২, ৪৫, ৫০, ৫০, ৫৬, ৪৫, ৪২, ৪০, ৪৩, ৪৭, ৪৩, ৫০, ৪৬, ৪৫, ৪২, ৪৪, ৫২, ৪৪, ৪৫, ৪০, ৪৫, ৪০, ৪৪, ৫০, ৪০। ক) উপাত্তখলোর পরিসর নিণয় কর। খ) ৫ ব্রেণিব্যাপ্তি নিয়ে একটি সারণি তৈরি কর। গ) প্রাত্ত সারণি থেকে আয়তলেখ আঁক ।

В цехе 10 сотрудников. Заработная плата начисляется в соответствии с уровнем квалификации. В ноябре самому квалифицированному из них повысили зарплату на 10192 руб., а самому неопытному, наоборот, снизили на 1139 руб. Насколько увеличилась разница между медианой и средней заработной платой в ноябре по сравнению с октябрём?

4. En un laboratorio se está experimentando con una bacteria benigna que se pretende usar en la elaboración de un nuevo medicamento. A continuación se muestran los tiempos, en minutos, de reproducción de 25 cultivos de esta bacteria. Calcula el percentil 80 e interpreta este valor. \[ \left. \)\begin{tabular}{r|}\( 60-47-82-95-88-77-39-90-63-68-64-58 \) \\ \( 94-55-89-72-50-92-90-77-86-58-78-86-44 \)\end{tabular} \right\rvert\, \]

11) In a class of 35 students: . 7 students participate in the Basketball team, : 16 students participate in the Chess club, : 3 students participate in the Science club, - 5 students participate in both Basketball and Chess clubs, a. Draw a Venn diagram to represent this information, where: - B represents the event "participates in the Basketball team," : C represents the event "participates in the Chess club," (represents the event "participates in the Science club." b. How many students in the class do not participate in any club or team? c. How many students do not participate in the Basketball team? d. How many students participate in at least one club or team? e. How many students participate only in the Chess club?

3) For the following lists of numbers: a. Identify the upper and lower fences for the outliers b. Label the outliers i. \( -5,3,7,12,15,9,2,18,6,14,30 \) ii. \( -10,4,8,11,16,9,3,14,7,13,25 \) iii. \( -6,5,7,10,12,8,4,11,6,9,22 \) iv. \( -15,3,6,9,10,8,5,12,7,11,20 \)

Here are the weekly staff wages ( \( \$ \) ) from 2 small internet companies. A: \( 250,280,320,350,730 \) B: \( 160,200,200,280,280,320,360,400 \) Calculate the means. mean \( A=\$ \square \) mean \( B=\$ \square \) Calculate the medians. median \( A=\$ \square \) Which company has the higher wages on average?

Find the mean, median and modes of these sets of numbers. Mean Median \( 8,6,8,6,2 \) \( 27,29,20,12,29,17,14,28,4 \) \( 6,12,5,8,5,6 \) \( 10,5,7,6,8,7,8,14,8,7 \)

2. Temperature data was recorded in degrees Celsius on a given day. Circle the classification that best describes this type of data. \( \begin{array}{lllll}\text { A. Categorical- Nominal } & \text { B. Categorical-Ordinal } & \text { C. Numerical-Discrete } & \text { D. Numerical- Continuous }\end{array} \)

What is the mean absolute deviation of 10,4,12,4,2,10,10,6?

A study was done on the weights of different types of fish in a pond. A random sample of fish were caught and marked in order to ensure that none were weighed more than once. The sample contained 150 largemouth bass, of which \( 30 \% \) weighed more than 2 pounds. Which of the following conclusions is best supported by the sample data?