The greek letter sigma has many meanings and uses in math.
The uppercase form is written as which looks like a fancy or weird looking letter "E". This form indicates we'll be adding a bunch of items. They can be numbers or algebraic expressions.
The lowercase form is written as which looks like a rotated letter "b" in a way. This lowercase form is often used for population standard deviations in statistics.
There are many other uses for this greek letter, so you'll need to provide more context and information to the question.
Answer:
(a) 3.75
(b) 2.00083
(c) 0.4898
Step-by-step explanation:
It is provided that X has a continuous uniform distribution over the interval [1.3, 6.2].
(a)
Compute the mean of X as follows:
(b)
Compute the variance of X as follows:
(c)
Compute the value of P(X < 3.7) as follows:
Thus, the value of P(X < 3.7) is 0.4898.