20)On lance simultanément plusieurs dés à quatre faces. Détermine le nombre de dés minimal qu'on doit lancer afin que la probabilité d'obtenir au moins un
4 soit supérieure à 75%.
a) 5 dés
b) 6 dés
c) 7 dés
d) 8 dés

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?