What is the smallest number of men we would have to choose to estimate the mean height of men with an accuracy of +, - 0.5cm and 95% confidence, assuming a standard deviation of 8cm?Ī student randomly selected 225 college students and asked them whether they ate breakfast that morning before coming to campus. In the fishery, they gradually sold carp weighing 2 1/2 kg, 1 5/6 kg, 1 3/5 kg, 2 1/10 kg, 2 kg, and 2 2/3 kg. Calculate the average number of students in 8A. In 8A class, the average height of 12 girls is 156 cm, and the average height of 14 boys is 172 cm. (Report the probabilities using at least 4 decimal places. State the probability that a randomly selected stoach weighs more than 1118g. ![]() ![]() Stoach weights are normally distributed, with mean 1314g and standard deviation 113g. If Rina's cell phone bills for the past five months have been $91, $69, $74, $56, and $70, what was her average cell phone bill for the past 5 months? A sample of 20 leaves of that type of plant given a new type of plant food had an average length of 4.2 inches. The standard deviation of the population is 0.6 inch. Find the average price kg per dollar.Ī biologist knows that the average length of a leaf of a certain plant is 4 inches. Examine the data using groups and presenting: a) the Histogram of the absolĪ person buys 10 kg of commodity A at a rate of 2 kg per dollar, 20 kg of commodity b at a rate of 5 kilograms per dollar, and 30 kg of commodity C at a rate of 10 kg per dollar. What is the mean of the data?įind the 5.5th decile of the data: 62, 60, 37, 57, 55, 59, 57, 50, 49, 61Ī sample of 10 randomly selected students revealed the following grades in Business Statistics first test (in a marking scale of 0 to 100): 79, 63, 60, 45, 55, 58, 59, 62, 40, 68. ![]() Compute the standard deviation.Ĭonsider the data below that shows the number of COVID cases of the fifteen barangays in Naga City.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |