An important factor in solid missile fuel is the particle size distribution. significant problems occur if the particle sizes ar
e too large. from production data in the past, it has been determined that the particle size (in micrometers) distribution is characterized by f(x) = 3x−4, x> 1, 0, elsewhere. (a) verify that this is a valid density function. (b) evaluate f(x). (c) what is the probability that a random particle from the manufactured fuel exceeds 4 micrometers?
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To write the number is standard form we need to move the decimal point six times to the right, then:
therefore the answer is b.