ger will not earn you sufficient credit. butich of Suppose 70% of all jars ofjel

Question

ger will not earn you sufficient credit. butich of Suppose 70% of all jars ofjelly in FoodStore are grape iellL Twenty jars ofjelly are randomly selected from FoodStore. What is the probability that more than 10 contain grape jelly? Please include enough notation so I can understand your work. If you are unsure what to include, please look at the book or watch my videos for examples. Just writing down a bunch of numbers and adding them together will not earn you sufficient credit. 4) 5) Regarding density functions and their graphs called curves State the two basic features of any density function. a. Suppose variable X has a given density curve If the area under this density curve that lies to the left of 15 is 0.354, then what percentage of all possible outcomes of the variable X is at least 15? b. For each problem, use the table (no calculator!) to obtain the area of the indicated region under the standard normal curye 6) a. Find the area

Explanation / Answer

Ans 5a: 1. The graph of the density function will be continuous over its range

2. The probability of the assumption of values of random variable to lie between 'c' and 'd' is simply eaual to the area that is bounded by the density function's curve under the points 'c' and 'd'

Ans 5b: The area under the density curve is 1. Hence the remaining area ie outcome at least 15 is 1-0.354 = .646 = 65%

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