What is the probability that an SAT test- taker chosen at random scores between 450 and 680 on the math section? Use a mean= 500 and a std. dev. 100. ( express as a decimal rounded to 4 decimal places)
* Would you use normal cdf? This is what I put: normalcdf (450,680,500,100)= .65553
I think its 65.5, not sure! Please contact me when u can. Thank you!
* Would you use normal cdf? This is what I put: normalcdf (450,680,500,100)= .65553
I think its 65.5, not sure! Please contact me when u can. Thank you!
