IBsurvivor98 Posted May 9, 2016 Report Share Posted May 9, 2016 Hey Guys! So the Math SL exam is tomorrow, and I can't find the answer to my question. When we want to use normalcdf/ binomcdf, whats the difference if the question asks us to find the probability "less than" and "less than or equal to" In continuous data, whats the difference in the inputs? 1 Reply Link to post Share on other sites More sharing options...
kw0573 Posted May 9, 2016 Report Share Posted May 9, 2016 Hi. There is no difference between less than vs less than and equal to in NORMALCDF. In binomcdf, you want P(X <= 5) you do binomcdf (n, p, 5), if you want P(X < 10) you do binomcdf (n, p, 9) such that you add up to P(X = 9) and stop. Reference: http://users.rowan.edu/~schultzl/TI/binomial_StatI.pdf Good luck! Reply Link to post Share on other sites More sharing options...
IBsurvivor98 Posted May 9, 2016 Author Report Share Posted May 9, 2016 1 hour ago, kw0573 said: Hi. There is no difference between less than vs less than and equal to in NORMALCDF. In binomcdf, you want P(X <= 5) you do binomcdf (n, p, 5), if you want P(X < 10) you do binomcdf (n, p, 9) such that you add up to P(X = 9) and stop. Reference: http://users.rowan.edu/~schultzl/TI/binomial_StatI.pdf Good luck! What if the data is continuous for binom? Reply Link to post Share on other sites More sharing options...
kw0573 Posted May 9, 2016 Report Share Posted May 9, 2016 Do you have an example? I don't think I have see anything where binomial is continuous. Reply Link to post Share on other sites More sharing options...
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