A survey found that \( 24 \% \) of third-level students in a particular country find mathematics more approachable after their first year at university. In a follow-on study, 20 third-year students are randomly selected. What is the variance of the number of third-year students that would still not find mathematics more approachable than when entering university? 1.9 3.6 2

33 Berikut merupakan maklumat yang diberi: Below is the given information: \[ \sum f=20, \sum f x=204, \Sigma f x^{2}=2384 \] Cari sisihan piawai untuk data di atas. Find the standard deviation for the data above. A 1.42 B 2.58 C 3.89 D 4.67

(घ) निम्नलिखित सारणी में 400 नीमान लैम्पों के जीवनकाल का विवरण दिया गया है। लैम्यों के जीवनकाल की माध्यिका तथा बहुलक की गणना कीजिए। (क)

إذا كان الاختلاف للمتغيرين ودرجات الطالب 0.60 فهذا

10. Uma pesquisa foi realizada para saber a quantidade de horas que 15 alunos passaram estudando para uma prova durante uma semana. Os resultados são os seguintes (em horas): \( 1,2,2,3,3,4,4,4,5,5,5,6,6,7,8 \) Crie uma tabela de frequência absoluta e frequência Relativa.

: إذا كانت r=0.06 نوع الارتباط هو :