Question

At a track meet, 50 people ran the 100
-
meter dash. 2 people finished in 11 seconds, 5
people finished in 12 seconds, 8 people finished in 13 seconds, 10 people finished in 14
seconds, 21 people finished
in 15 seconds, 2 people finished in 16 seconds, and 2 people
finished in 17 seconds. What is the probability distribution for the finish times?

Answer 1

I need help

Answer 2

Obviously something like finish time should be some kind of continuous distribution, but here we have to work within the confines of the weirdly constructed problem so we have a discrete distribution. Also, it doesn't really make sense to talk about a probability distribution of a result of a set of observations like this, but whatever.

The domain of our distribution function is the whole numbers of seconds {11,12,13,14,15,16,17} and the probabilities of each of those values occurring can be calculated by dividing the number of people who finished with those times by the total number of people who ran. So, for example, P(14) = "probability of a runner finishing in 14 seconds is 10/50 = 1/5 = 0.2 (because 10 people ran that time out of 50).

The main wrong answer is "it is a normal distribution".

Answer 3

u copied and pasted.........

Answer 4

no

Answer 5

asked my bro

Answer 6

i just looked it up on another questions asked last yr

Answer 7

cute of you

Answer 8

V-V