Trace this program:  let cart = [“Phone”, “Charger”]; let to…

Trace this program:  let cart = [“Phone”, “Charger”]; let total = 0; for (let i = 0; i < cart.length; i++) { total += i; if (cart[i] === "Phone") { cart.push("Headphones"); } else { cart.pop(); } console.log(`i=${i}, item=${cart[i]}, total=${total}, cart=[${cart.join(", ")}]`); } console.log("Final cart:", cart); console.log("Final total:", total);

Research Firm LLC has decided to survey adults about their t…

Research Firm LLC has decided to survey adults about their texting and driving behaviors. They decided to write their own survey instrument because they could not find one they thought fully fit their research questions.   Because they developed the survey, Research Firm LLC wanted to be as sure as possible that the survey was reliable and valid before they sent it out to their desired sample. One way to do this is through: