Answer:thanks 4 the points
Explanation: lol
<span>An increase in the demand for bubble gum might be caused: by </span>the fact that blowing bubbles is now a popular activity
In marketing, bubble gum is considered as an Unsought product, which is a type of product that wouldn't be bought by customers under normal conditions. This type of products usually had a really high demand when it still becomes a trend and will dramatically decrease as soon as the trend faded out.
Answer: Confidence interval
Explanation:
A confidence interval is considering one estimated range that is showing values of unknown population mater than after that, estimated range will be calculated. One of the most important things in confidence interval are independent samples which copies are going to be taken repeatedly from the one same population. Confidence interval will do calculation of those samples and then after that there is coming a percentage of intervals.