Question $1(3$ points$)$

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For a Student's t$-$distribution with mean $0,$ standard deviation $1,$ and degrees of freedom $30,$ which of the following Python lines outputs the probability $2\mathrm{.}85,30,0,11\mathrm{.}5,30,0,12\mathrm{.}85,30,0,11\mathrm{.}5,30,0,1(2\mathrm{.}85,30,0,1)(1\mathrm{.}5,30,0,1)P(1\mathrm{.}50)S$ Select one.

import scipy.stats $asst$ print$(st.t.cdf(2\mathrm{.}85,30,0,1)-st.t.pdf(1\mathrm{.}5,30,0,1))$

import scipy.stats $asst$ print$(st.t.cdf(2\mathrm{.}85,30,0,1)-st.t.cdf(1\mathrm{.}5,30,0,1))$

import scipy.stats $asst$ print$(st.t.sf(2\mathrm{.}85,30,0,1)-st.t.t.f(1\mathrm{.}5,30,0,1))$

import scipy.stats $asst$ print$(t.cdf(2\mathrm{.}85,30,0,1))$