bac-s-maths 2023 Q5

bac-s-maths · France · bac-spe-maths__centres-etrangers_j1 1 marks Binomial Distribution MCQ Selecting a Binomial Probability Expression or Value

An urn contains 10 indistinguishable balls to the touch, of which 7 are blue and the others are green. Three successive draws are made with replacement. The probability of obtaining exactly two green balls is: a. $\left(\frac{7}{10}\right)^2 \times \frac{3}{10}$ b. $\left(\frac{3}{10}\right)^2$ c. $\binom{10}{2}\left(\frac{7}{10}\right)\left(\frac{3}{10}\right)^2$ d. $\binom{3}{2}\left(\frac{7}{10}\right)\left(\frac{3}{10}\right)^2$

An urn contains 10 indistinguishable balls to the touch, of which 7 are blue and the others are green. Three successive draws are made with replacement. The probability of obtaining exactly two green balls is:\\
a. $\left(\frac{7}{10}\right)^2 \times \frac{3}{10}$\\
b. $\left(\frac{3}{10}\right)^2$\\
c. $\binom{10}{2}\left(\frac{7}{10}\right)\left(\frac{3}{10}\right)^2$\\
d. $\binom{3}{2}\left(\frac{7}{10}\right)\left(\frac{3}{10}\right)^2$

Paper Questions

QExercise 2 Part A QExercise 2 Part B QExercise 3 QExercise 4 Q1 Q2 Q3 Q4 Q5