<img src="https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_B599A326-E3E8-4CCD-8BF5-6EF1E4BDD890/public" style="background-color:#FFFFFF;max-width:min(100%,2241px);max-height:min(1312px);;background-image:url(https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_B599A326-E3E8-4CCD-8BF5-6EF1E4BDD890/public);height:auto;width:100%;object-fit:cover;background-size:cover;display:block;" width="2241" height="1312"> <img src="https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_78928357-8D7B-4871-9C61-55409A1F042B/public" style="background-color:#FFFFFF;max-width:min(100%,2226px);max-height:min(1354px);;background-image:url(https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_78928357-8D7B-4871-9C61-55409A1F042B/public);height:auto;width:100%;object-fit:cover;background-size:cover;display:block;" width="2226" height="1354"> The thought process here is that since the opposite of at least one is none, you need to find out what the probability of NOT getting a 4 is and then take that number from 1 (or 100%). <div class='embed-container'><iframe src="https://youtube.com/embed/wiy6tFrvuy4?si=gEwKRNA262pKh_Hu"></iframe></div> <img src="https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_0D8039CC-4717-42E4-9382-F0AB561FA9E0/public" style="background-color:#FFFFFF;max-width:min(100%,2519px);max-height:min(1483px);;background-image:url(https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_0D8039CC-4717-42E4-9382-F0AB561FA9E0/public);height:auto;width:100%;object-fit:cover;background-size:cover;display:block;" width="2519" height="1483"> <img src="https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_76504955-DB77-4293-9464-48B0D6284124/public" style="background-color:#FFFFFF;max-width:min(100%,2752px);max-height:min(1850px);;background-image:url(https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_76504955-DB77-4293-9464-48B0D6284124/public);height:auto;width:100%;object-fit:cover;background-size:cover;display:block;" width="2752" height="1850"> <a class='tag' href="/tags/CountingAndProbability">#CountingAndProbability</a> <a class='tag' href="/tags/Probability">#Probability</a> <img src="https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_D0EE8C9D-87DB-4028-8B9B-345BB48D4076/public" style="background-color:#FFFFFF;max-width:min(100%,2732px);max-height:min(1787px);;background-image:url(https://imagedelivery.net/phxEHgsq3j8gSnfNAJVJSQ/NODE2_D0EE8C9D-87DB-4028-8B9B-345BB48D4076/public);height:auto;width:100%;object-fit:cover;background-size:cover;display:block;" width="2732" height="1787">