We have the variable X+Y
Mean for X + Y :
We need to find :
We use Excel function "NORMSDIST()" as :
Hence,
62.9% of the filled boxes weighing between 104lb and 106 lb are to be expected.
please show equations used & dont copy other solutions A machine fills boxes weighing Y lb...
A machine fills boxes weighing Y lb with X lb of salt, where X and Y are normal with mean 100lb and 5 lb and standard deviation 1 lb and 0.5 lb, respectively. What percent of filled boxes weighing between 104 lb and 106 lb are to be expected?
A machine fills boxes weighing Y lb with X lb of salt, where X and Y are normal with mean 100lb and 5 lb and standard deviation 1 lb and 0.5 lb, respectively. What percent of filled boxes weighing between 104 lb and 106 lb are to be expected?
hello i need help solving this problems please c. In a group of 230 tests, how many students score within one standard deviation of the men? 19. The number of roils of a given length is normally distributed with a mean length of 5.00 in and a standard deviation of 0.03 in a. Find the number of nails in a bag of 120 thet are less than 494 in long b. Find the number of nails in a bag of...
Write solutions legibly, and show all work. Walk the reader through your thought process, using English words when necessary. 1. Recall question 2 of the previous homework – We draw 6 cards from a 52 card deck and let X = the number of heart cards drawn. You already found the pmf back then. You’re allowed to use it here without re-deriving it. a. What is the expected value of X? b. What is the variance of X? What is...
Let X be normally distributed with mean 100 cm and standard deviation 5 cm. (a) On the diagram below, shade the region representing P(X > 105). (2) (b) Given that P(X < d) = P(X > 105), find the value of d. (2) (c) Given that P(X > 105) = 0.16 (correct to two significant figures), find P(d < X < 105). (2) (Total 6 marks) 2. A test has five questions. To pass the test, at least three of...
Can you please provide the formula for the worksheet also. CASE PROBLEMS Level 1- Analyzing Sales for Crèmes Ice Cream Judd Hemming is the eastern regional marketing manager for Crèmes Ice Cream. Eac quarter, he completes two separate analyses: an analysis comparing ice cream flavor sale volumes from all regional locations with the same quarter sales volumes from the previou year and an analysis comparing total sales in dollars, including mean, median, mode, and standard deviation, of sales by store....