Question

I have a Math question on Probability :)

Find the experimental probability.



Sheila drew single marbles from a bag, recorded the outcome, and replaced the marble. In 50 draws, Sheila drew 20 white marbles and 30 black marbles. What is the experimental probability that the next marble will be black?

A.


B.


C.


D.
I need help on 5 questions

Answer 1

I need help!

Answer 2

What are the choices?

Answer 3

A. 2/5


B. 3/5


C. 2/3


D. 3/7

Answer 4

B: 3/5 http://www.jiskha.com/display.cgi?id=1334752279

Answer 5

will that website help with all questions !?!?!

Answer 6

And Thank you for the answer

Answer 7

It should, when I was taking that it gave me MOST of the answers and they were correct. You're welcome.

Answer 8

just google the questions, that subject is easy to find the correct answers.

Answer 9

k

Answer 10

Three out of 200 machine parts were found to be defective.

About how many parts would be expected to be defective out of 2500 parts?

A. 15

B. 30

C. 38

D. 67