There are 200 billion stars in the milky way, with 90 percent of them being main sequence, most of these are sun like. (I cannot find any solid information that says the sun is anything but the perfect example of the average main sequence. Bigger stars die quickly, smaller stars are nearly invisible to us [dwarfs].) This means 180 billion stars are like the sun, but due to uncertainty, and tiny size of most of these, on a personal educated Hypothesis, I believe there to be about 100 billion stars that are sun-like and stable enough to support a solar system.
big
The average star will become a white dwarf at the end of its life.
The average size is about 1500 sqft.
Our Sun is an average-sized star.
Yes, the sun is an average-sized star in terms of its size, temperature, and luminosity compared to other stars in the universe.
the sun is an average star, in size heat, ect.
A very average star in terms of age, size, and temperature is often referred to as a main sequence star. These stars are stable and generate energy through nuclear fusion at their cores, resulting in a balanced state of brightness and heat. Examples include our Sun.
Whatever size is appropriate. "5-star" is a measure of quality, not size. A 5-star resort could be huge and expansive, or smaller and more intimate, but in either case it should have restaurants capable of handling the expected attendance.
That is like asking "how old is a man who is 5ft 3in". A star the size of our Sun will "live" for about 10 billion years. There are many stars, the size of our Sun. Some have just been "created", others are close to "dying" There is no average age.
Red giant.
A Red Giant
Nothing, really. The Sun is average in size, temperature, and density. Its an all around average star.