Una compañía petrolera afirma que un quinto de las casas en cierta ciudad se calientan con petróleo. ¿Tenemos razón para creer que menos de 1/5 se calientan con petróleo si, si en una muestra aleatoria de 1000 casas en esta ciudad, se encuentra que 136 se calientan con petróleo? Utilice un valor P en su conclusión.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.