CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="390"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "www.udacity.com",cType: 'managed',cRay: '8e6f3d614ed96bd9',cH: '8VOTgGz5HvSum82xIXSlMgqhock4PBaiDOQgwTmd47A-1732344781-1.2.1.1-15_skzR07zfWEs9duGUrutnve4rfVfMG2x8jl8eMKYqENyY4LGcuFbe0gHaE27C0',cUPMDTk: "\/course\/marketing-analytics-nanodegree--nd028?irclickid=RhGzmLWtqxyKTv-2KrQcXQDyUkCQHUQcUV7kRU0&irgwc=1&utm_source=affiliate&utm_medium=&aff=3285521&utm_term=&utm_campaign=__&utm_content=&adid=786224&__cf_chl_tk=lkzMbIDixF3vqMthh4noJNtgAhZVBTzw6ZnkY2K5z_I-1732344781-1.0.1.1-.Gd1sDgVP.iuP_cfIFr8Jlgl4uDtdM87v8V4k5uKZAk",cFPWv: 'g',cITimeS: '1732344781',cTTimeMs: '1000',cMTimeMs: '390000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/course\/marketing-analytics-nanodegree--nd028?irclickid=RhGzmLWtqxyKTv-2KrQcXQDyUkCQHUQcUV7kRU0&irgwc=1&utm_source=affiliate&utm_medium=&aff=3285521&utm_term=&utm_campaign=__&utm_content=&adid=786224&__cf_chl_f_tk=lkzMbIDixF3vqMthh4noJNtgAhZVBTzw6ZnkY2K5z_I-1732344781-1.0.1.1-.Gd1sDgVP.iuP_cfIFr8Jlgl4uDtdM87v8V4k5uKZAk",md: "Wr_VWjV.l1a15Kuxq1xVqD39i65oNEM1e.WfD4I7Wbg-1732344781-1.2.1.1-15zUWXaTmtGDwBYef22cpgQ487JwOVyto4b.h_3HKA4OFCzJY9SmOdewtqEnmGF4ZrqU04s_YLmLIsq3qDsnjs5HphxiCoLpY2YefD5fE8qy.HLzs12qf3mBjqdt4iVaokw_xeXNaQ5cgEpRGjc8NE0VhkKKbzCcytlWDkXQaY8KzUCXnjyxwUX9c_1tdGO.LWxtOex9ENu_U5_wXaSZEXy9Z0Kb_OLWbvmvEIDyZE.TfvqvOTZkli_KgDY5hwaij5FscgvYvV.arApbBVF8F2AhaeP3ChQOQ7SWfdrHPNvyRyPjCYOMmaY_GwBm3wf0h7EDwGsDLkrEKTfRGO2g0yDpflW8ZWoSgIfruDaKS0n0oc5eNx3ikbNhMEMXXzW7zwsIrhTG2MjYPTaNMUE2ko_mgCZIVe1mzVqWn42.yPoV4hJiQqNT2pzP6uSE3tjh4KYJAExCRphqx.2aWSd2H9X52rg8bzxjq01Fzj1M4h4PmE1j2zAbA10fvjwxGSGJkfr115WBEAZY7xo1R4o4VQW4A5P3EZgExL5Y9aPqfFvaXwvYmC5XVYE9Pxr6..fdKJa7ZMsVA61RLokYbMatHituaYu2UeINWgvfH6dfgU1wvgxwoYvIpzitQqbyrr3.tSll7RDsmPGGYSURxgE5u2_X0P04Fs0DF3HO11YRs7ZM4BymcEA7qmb.3mSwJXsVf283zcU0FLHa.s4NQSIJ_8GTrzwY7iir7aVWY9RUnNfDunRdNdbxKLPij1yOx2gTR1SsUyGY__a_udxl5MqjDKrjr0DcKz_554KFWt2UyCaA9xLFYfb7x0fJRXggYzSh6W27yDQr6NDv84GVCgNR70_o2vs9Zr_W36D5bQBLNFVnp1Qe_fjLxKAXz8unG4jKlxshTFaaDGnpPGEW9YVompGB77tSzchzCSPTklafoeTphW4f3eEbOXY239B_rqYTkqBNNR6011nCdBc_yQUIRDO259JGwZ1PbJGTXllG6krgyyT2ZcX4ECTJdUVE3B9WSEbe3eObCwm28mHxz.Fo05XyFsdltUORvKEzsjlNhGISnXfLdI9SLWuMarMZOLmPFMUmXCCg.NBhJI_hcniiH7yhzvFYwgFKAaKXoJeeiTCMw.USOhkZ3wrFILl8SxUa.I3BGBUv.lbzGR70rM4sdCr7UTFW_KBe20H0GYklTlpA7uXon.M24zJHxI3t4GaknP11Us5LsGYdBm15Z4I7beIE8VfbhvnmMQpeNuLACqR0jt7fqHSgZ0BX6nK62WQDoo7.WM_BDftA.wVPzkj0_Bz09T68l_x5jA_UlmtoeOx8xPSQF00RPcOSAZxdq2TW60DY82Px4dYyQi6_xnGm9hpwaAqi44ZgDEIzJO28DPiXsDvv5_XqK9MQRJeo_kzB60F.XJx4P9I84jhS49rk1AJjBCokBey7vwgWStgzRVYpw__4cC2g_tHnaPrczhasIc_wknBLr9IR91M7qP1j5_lGwMpHGRJBUF7HYyHW8G9fR9WX0afr25oMgoW9zbxK69XdaJFVf7T9dEo8VRNAM1dwPxWcHARj_5Gyc60c1HtbtLglMO4a3tbrNTurHNx_DWJCO3O.2DDqDqxDmvFPbQgt.RmyWsCpqJDx5BosYJ_yyJKRe68AizZcR3TVIacs.f9vfAtJbn.Fa6wGafCBE9VOzEXPqMMUiEf.yf3m77oFxsjFB66696VHcqLXj7a5L31Fd1Ogg2vGYHl2M1neLeOWOmikl0GYmBPIKn1R23K6WlJgke8K2wqIqNzsTw2gufWQZvjIcUFPJPxeRc74031i9Px__MttTQ.Mx_n1NWNZl8y3BhGGans.cjRHBYyVOmIOEJR9.5qKd6P0BkOr2apT2OKiW7.t2L9hNY8utUZCJnqw0.ELxpHbahds20xSnv4OwBGBlEwHaa5AvxLhbVpRfNwwlnOcChKSRUY90bOMZlwkjIyEs_Ck4n5XaIlMxDAeVYP2SAZ3cXmS5fKQ9Vt3McFGzESKmzdiQgiJRjCn8OBfth6SxUz.0DdJETD6YNumxXCe.PxVorwGeZ63bUDB.YQx.cbCYHIxwzIr357FZ1rcNlwIeSepVtCsRHwyAyQ52Un6ZTdioQnqCEf1WJnhlwjpyJ3dy7Da583myuswRJVLv4h6__4wHkIv0cd7O3WYmEPimANX_yuEYGy6fry2LhJFa4WJ29bF1ccID8poxaWysUpvN318afORGTisC9Utd5l2fRTOjd.4.6nX.11xMhCuueizEeXH8FYol7Qi_p4sQ8uBBMDgcOgklTleqYhbQupRagdWOeR7jCgpKAqCPKWbvy31qWNj6rL9v6bmiUKrYE6FhId27JLJxbjEv8mIqkncyxKpP0aMj9gHGguEXszI22pd1KCa5dgmqv7ySCe7d44Gc.SCMe5qTSmvB62YeSDYvvsT0KGGy9Bs0GwQVNQstMw5.8ZAvDL670ZZPW4xa2Y351Ub6PRSCGp5qo4bIqlbTASsiGHTNpwqOXyrc73xX0.AB.uSuCoM7WILBY6xTAMRjgOj0tQckd8KI35V5fTU.BHm7XiPhoIfdTu_Udn4KZO_dhM4we58wgXAIQx0w0TqRksxcfdlMGiNS4PxSHBiYR9Dj3ezdbIDg3A2o_Xm2CRbqYNWINVWbUp7MG7yKD.enw09EjAXxcMyAe6RP8pkAPMk_3SDQm5V00nOAhYBRpvXMQ2w.DLCm0tHsUd5ec39G2.F9kOUq8GlmJOyWbcZyjNFozCAWVclcXsFSB7CpNY4bv.tm8SxKhB9cnyAOPlZA_vZVSKpgKYseh_7ojokQ5UJukkPNUS4eWeMGLP.kYwhbRBqelhAM0Gk.Jaga6yZbpppugxy2Dt6mrqU7I9iHTcz0EVi_Q5ohHvWGiGFSYf3HdAVL6XHt9hESk13CL4aCL48Gv4dDGCwh5rsolNgxe17zbBiYMGA36NUpyL_htner0De7SL9N_vDvWcj8hCKTreVJKrs4T.3mCvbY_jkEF_tQrtADz14mQMJFo6.OvLzyJjf3TjZ_82hFsaJyhBwyfmWRuOxScS6s4yPp5LuR8Rlih49qjayR0Lz8xxJiKDTWedobaS.Dxy18dspsB9eRgYvYS0eykMfUmgx1nJMZfiv0MXO0ojE1T7sexnhMF1YjSekhi829eCcoySux4ZsHjFUU_egVtbsmhnS3sWMEDexHmV6KQwMEHxeXOgV1kcBMXGGlFCKPj4U5dUZpS_1y1hwv5Gq4F0imyULdf6uo9qzOWwaGyZ2BMyBew8Y7fe_C1CiYfH1isbs1OtGt1gBOWT9_YgJP5yr1cycVJTFx9l1nVlxZlCFJCW0w5qDjYyikXyoxqTMXGqJL9vXlomFU2lo6UxALCQHFOUEf_IBsY0.x1zMk7PYoA",mdrd: "7j3zxi9fFZd_CKPzD5Pw40aF6oGy8Lfk8PulizjeOtE-1732344781-1.2.1.1-b5.0n.IJZNS3oVaHpdEQktJY3zS.5BHpYpQibVfRQcSVcXXcAcVHZGwN9QjBxOziLxQyRY4_UU16lOt9zog7kmduqvm72qTr13Y10eOX41.YxNnIeXBztuPwqaWfzuwF5oozNAYDtHcrs5ig7KNJ7OfGmzpLqNwqpYlD5FqWEDSV6DWf84VgE9qyv13CtItqqQYHtTPg2TGxKGszP5LNgU8cSBO0piIcEy1nm54Ji.tW.jn7IuwX.hK07SCQohhRE4qtO0531j5JnF8O8Fj6NT5rjW81odrRg4SwTgmj_gtyi8y8PezUffYWBz25vpV9jJxb.ClF0gmKKr4CA6KtCJdnONqLduo_0XCDqPXyH_Lrr6EGqeDmhRIG.Y.wNa0yPpVUf4XEMZ_4IhQ0lP5cZAjuJvhqlrq4Mo9I2uXDOrp2QjlS3N36deP02YKSBsg60459ZeRThZyvXxSv1n27KPO7Zqs3XDAXF_45.LLiF83Z4MZ__eSSr3WnJjmt4b49Ct2lRVfTKRDgLpQ_0oKqY4khzqrTB3ie.x4bYdy.pK08_F.kDX_sde1.ERh_5gU8b3t96zCOjT2BAHo0jIQFsxXeVjxGKkZgy2mhNC6ycBKelM72YmsGzhcMjBkmq3V6hQyKYOvoklh4j5RjmNYwlBVkoZfwfI.OlTl_sNsBYwJDCy9YXJcoZEXLtilyKdnLouEwCGVY4skgP2BU23sMtUpC.BDPoqcX7VZAalMpmVNjIGI6m.o2TPMMgf0XZ5hr_iSPi9Yi_qhcFLokPCIfPe6QONY10A5byM3QOpC_pP8UPEz3AAWz5xaOyZiGY4TzWWLqPchTaGGtv2ucML6kSvmwuXGUeafbBrYrseIjBjg_RxQVLO.8BEeF6k4HSxouit7WFYFdWZCZw4.02375OkZ2in.dhRRMa4zJ4u_6YY23LbjFXl.j.SElPbX6Ojrd8e9LjWGMgk.uIaaVl.tp6XshFzkNNqL3FaYC4jjs7zSexAT9iKTVoknE.FbzNkaNk5NpvUTaZ9hBEt5dMeXrAxzJByFX_u_0YZIu_BIzXhFgdDdVcbwjIJeNPKyPyoK.ZWjJ4nth7G1AOs09VddOZeANFVCyQTtN_uEwom00TP9BUwgcPGYDTTScKvl3HUXNwXyP949_0jPKB09X3WyiOo4WbxXhNbNfuZLVbUYF.kojj3__Xd5qQ4dqRc6LaynYNIL2TDa0W1r94_MPXTB2O1f12iPWYIgfOI5oFf6XjqJlmfgD86bLGZtTez9YJuF5ZjDYzY_tl3J2MgAZECvmX79crTkKoxIYVlHeeqpj8bUtB82FUqUDr5JfSEjwC29skAbkYs6vR9T3YQ3GKvXjMN8KfKsqu6uES1cHSQ7.u_aP_WcImy9MCA0_zwkc29xSc_BEvHYukPXWB4rgKszOJ2CUCBifhAsf3NdaPw5U78Vav5_EqgR.gK3uI2idOvsD1prb.ivbJx7aewuY39ekeiS4zgPaQADlwzdoNrtVTU8xIZdUdcz3gpq1zHrkgXPiIwObj_.1gMN2d8BfQgsZPL2p3L.bOK7rMLdiVrAG5mcd150EB_Ohl0oPs3STJ5qb1T2psm_lDQnvKvoHqzd8EZN7PtHDDfQBbtIF.oftEKOr9aOa2n65lj.GA93k58egsL0e0mzHY1KDzEPm5FUep9eCVH6ElXwkYpE7bRuzGtz9jObHj70AQ5Sc_odL_cI7AfmWOMcfHNOHrLht6Xc0h0slUFzuJ3QM6saL20RmB_aqQKkgvtG0_E6_lHNprcFgr8ezAtL_McI0peXwcIFWxYzzeKVR3xA0ng0aY8QAh98GtzhblQrVW8zddBNyf0ZqRd0mZqWo2DyBGZ1kMMkmmhAM3FV1U1Kph1AOQPPB.tvdnl0MbLC52ooYJd3Batyj5FcvLVDdRAy1YspL7B6PPYd0eqWqT_xYLEKXrj4sOEa0ft_IFS4e33RNUP4OfA7A"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/g/orchestrate/chl_page/v1?ray=8e6f3d614ed96bd9';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/course\/marketing-analytics-nanodegree--nd028?irclickid=RhGzmLWtqxyKTv-2KrQcXQDyUkCQHUQcUV7kRU0&irgwc=1&utm_source=affiliate&utm_medium=&aff=3285521&utm_term=&utm_campaign=__&utm_content=&adid=786224&__cf_chl_rt_tk=lkzMbIDixF3vqMthh4noJNtgAhZVBTzw6ZnkY2K5z_I-1732344781-1.0.1.1-.Gd1sDgVP.iuP_cfIFr8Jlgl4uDtdM87v8V4k5uKZAk" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>