Help pleaz I been stuck on this since 8 this morning

Can i get some lab tests of a new drug indicate a 70% success rate in completely curing the targeted disease. the doctors at the lab created the random data in thetable using a representative simulation. the letter e stands for "effective," and n stands for "not effective." neee eeen neenneee eene nnne neen eenenene nnne eneeneen enee eenn enne nnen eeen neee eenneene eeen eene nee ennn eene eeenneee enee neee nenn eenn nnn nenn neen enee eenethe estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective isthe estimated probability that the medicine will be effective on exactly three out of four randomly selected patients is