There is no box’s also give me brainliest answer
the answer is b, just divide 50 by 59 and multiply that sum to 6.4
Answer:
There are 3478761 ways to select the first 5 numbers
Step-by-step explanation:
As understood from the statement of this problem we assume that it does not matter the order in which the first 5 white balls are selected.
In this case it is a combination.
So, what we want to know is how many ways you can choose 5 white balls out of 55.
Then we use the formula of combinations:

Where you have n elements and choose x from them.
Then we look for:

a) If f(y) is a probability density function, then both f(y) ≥ 0 for all y in its support, and the integral of f(y) over its entire support should be 1. eˣ > 0 for all real x, so the first condition is met. We have

so both conditions are met and f(y) is indeed a PDF.
b) The probability P(Y > 4) is given by the integral,

c) The mean is given by the integral,

Integrate by parts, with


Then


