The amount of weight that the Elephant Hook® is required to hold is random depending on what is hung on it. It has to hold at least it's own weight of 40 grams, and if the weight is over 74 grams it will pull out of the sheetrock. This means the pdf for the Elephant Hook® is f(x) = (x-7)/1700 for 40 < x < 74 What is the expected value, ?x , for the weight on the Elephant Hook®? Answer to two decimals What is the variance, ?2x , for the weight on the Elephant Hook®? Answer to two decimals What is the standard deviation for the weight on the Elephant Hook®? Answer to two decimals What is the median for the weight on the Elephant Hook®? Answer to two decimals What is the probability a random Elephant Hook® will need to hold more than 56 grams? Answer to four decimals What is the probability a random Elephant Hook® will need to hold 56 grams or more? Answer to four decimals
The amount of weight that the Elephant Hook® is required to hold is random depending on what is hung on it. It has to hold at least it's own weight of 40 grams, and if the weight is over 74 grams it will pull out of the sheetrock. This means the pdf for the Elephant Hook® is
for 40 < x < 74
What is the
, for the weight on the Elephant Hook®?
Answer to two decimals
What is the variance,
, for the weight on the Elephant Hook®?
Answer to two decimals
What is the standard deviation for the weight on the Elephant Hook®?
Answer to two decimals
What is the
Answer to two decimals
What is the probability a random Elephant Hook® will need to hold more than 56 grams?
Answer to four decimals
What is the probability a random Elephant Hook® will need to hold 56 grams or more?
Answer to four decimals
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