Suppose we know that a certain exam has test scores that follow a standard normal distribution. What is the probability that a randomly selected score is greater than 0.84?

Question

jet_black_heart1423 · Answer

not a high probability unless you lucky

naate · Answer

lmao did that guy answer your question?^^ @Tomfoolery1

tomfoolery1 · Answer

not exactly XD

mathmale · Answer

First of all, you need to figure out what a score of .84 would mean.  Would that mean 84% on an exam?  Would that 0.84 be on a scale of 0.00 to 1.00?  What would the standard deviation of this normal distribution be?  Would it be reasonable (or not reasonable) to use 0.50 as the mean?  Or should we treat .84 as "the 84th percentile?"

tomfoolery1 · Answer

i think my teacher wants me to find the z score. i thought i needed more information to find the answer but this is all he gave me

tomfoolery1 · Answer

<3 <3<3 you are the greatest!!!