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4 questions please :)1. Determinate the interquartile range of the following data series2. Determinate the standart deviation of the following data series3. A set of

4 questions please :)1. Determinate the interquartile range of the following data series2. Determinate the standart deviation of the following data series3. A set of 32 data at an averagw of 10, what is the sum of the squates of the decistions from the mean of the elements of this set.4.According the standart deviation criterion, which of these funds is the least riskt (5years)

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Question 7 Determinez l'ecart interquartile de la serie de donnees suivantes 70, 90, 100, 120, 160, 170, 200, 210, 230, 250, 300, 310, 340, 350, 355 Reponse enregistree Veuillez choisir une reponse : Note sur 4,00 O a. 140 Ob. 165 Oc. 180 O d. [140, 305] Effacer mon choix Question 8 Pour standardiser les donnees statistiques qui obeissent a une loi normale, il faut connaitre ecart type de la distribution a laquelle elles appartiennent. Reponse enregistree Determinez l'ecart type de la distribution suivante : 68, 74, 78, 75, 68, 65, 72, 68, 62 et 70 Note sur 4,00 Veuillez choisir une reponse O a. 4,83 Ob. 14,49 Oc. 23,23 O d. 210 Effacer mon choix Question 9 Un ensemble de 32 donnees a un ecart type de 10. Quelle est la somme des carres des Reponse ecarts a la moyenne des elements de cet ensemble, c'est-a-dire _ (I, - )?? enregistree Veuillez choisir une reponse Note sur 4,00 Oa 310 Ob. 3 100 O C. 8 649 d. impossible, car on ne peut pas trouver la moyenne Effacer mon choix Question 10 Pour determiner le risque de certains fonds qui les interessent, un courtier et son client ont Reponse calcule l'ecart interquartile et la variance de 4 fonds pour les 5 dernieres annees. Voici leurs resultats enregistree Note sur 4,00 Fonds Anno Bano Cano Dano Ecart interquartile 8 6 Variance 22 39 20 21 Selon le critere de l'ecart type, lequel de ces fonds est le moins risque? Veuillez choisir une reponse : O a. Anno O b. Bano O c. Cano O d. Dano

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