The following data were collected by counting the number of operating rooms in use at Tampa General Hospital over a 20 day period:
On three of the days only one operating room was used, on five of the days, two were used, on eight of the days three were used, and on four days all four of the hospital's operating rooms were used.
(a) Use the relative frequency approach to construct an empirical discrete probability distribution for the number of operating rooms in use on any given day.
(b) Draw a graph of the probability distribution.
(c) Show that your probability distribution satisfies the required conditions for a valid discrete probability distribution.

1 and 2

step-by-step explanation:

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !