The speed of sound in dry air, v, is given by the equation
v = 331 + 0.6T , where T is the
temperature in Celsius and v is the
speed of sound in meters per second.
Tashi hits a drainpipe with a hammer,
260 meters away Minh hears the
sound and hits his own drainpipe.
There is a one second delay between
him hearing the sound and hitting his
own pipe. Tashi accurately measures
the time between her hitting the pipe
and hearing Mihn's pipe at 2.48
seconds. What is the temperature of
the air?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain