A sample of size 38 will be drawn from a population with mean 48 and standard deviation 10. Use the TI-84 Plus calculator. (a) Is it appropriate to use the normal distribution to find probabilities for x?
(b) Find the probability that will be between 49 and 50. Round the answer to at least four decimal places.
(c) Find the 42nd percentile of x. Round the answer to at least two decimal places.
(a) Is it appropriate to use the normal distribution to find probabilities for x?
Yes
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(b) The probability that x will be between 49 and 50 is ..
nd
(c) The 42
percentile of x is

The function models the number of accidents

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?