cavetown3552 cavetown3552
  • 11-04-2018
  • Mathematics
contestada

What is the probability that she gets exactly 4 or exactly 5 questions right?

Respuesta :

coochicans
coochicans coochicans
  • 11-04-2018
probability that the questions are answered corectly1/4 = 0.25
probability that they are answered wrong 3/4 = 0.75
probability that 4 out of 7 are corect 7C4(0.25)4(0.75)3  which equals  0.0577
Answer Link

Otras preguntas

can someone help? anyone who's taking like geometry?
What roles did monasteries play in strengthening Christianity?
What factors in the Layer Model could affect the skin temperature?
what is the answer??
1. two thirds of the track team ran las after practice .One fourth of the team worked out in the weight room. What fraction more of the team ran laps than worke
how do you rearrange ax+b=cx+d
Fluids only exert pressure downward. true or false
We can conclude that the maya were polytheistic because: A. The popol vuh mentions several deities who worked together to create earth. B. Stone tablets from ma
how do I prove 7 ÷ 2 is equivalent to 7/2
Can someone help me number five idk if im correct