The number of times per minute that a hummingbird’s wings flap is normally distributed
with a mean of 145 and a standard deviation of 2.
Part A: What is the probability that a randomly selected hummingbird flaps its wings more
than 151 times a minute?
Part B: What percentage of hummingbirds flap their wings between 141 and 149 times per
minute?
Part C: A hummingbird that flaps its wings 147 times a minute is in the
percentile.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

(a.s."similarity in right triangles"solve for xa.) 10b.) 20c.) 14.5d.) [tex] 6\sqrt{3} [/tex]

The weight of a full steel bead tire is approximately 800 grams, while a fighter wheel weighs only 700 grams. what is the weight of each tire in pounds?