Math
a spinner is spun whose central angles are all 45 degrees. #'s 1-8 on wheel. What is the probability that it lands on 5 if you know the following? a. it lands on an odd # b. it lands on a # greater than 3 c. it does not land on 7 or 8 d. it lands on a factor of 10
Math
2 dice are thrown. a. find the odds in favor of the following events: 1. getting a sum of 7 2. getting a sum greater than 3 3. getting a sum that is an even number b. find the odds against each of the events in part a
Math
Publishers records state: 20% of books published break even. 30% lose $1000. 25% lose $10,000. 25% earn 20,000. When a book is published, what is the expected income for the book?
Math
Box contains 4 white balls and 8 black balls. Pick a ball with your left hand, and don't look, pick a ball with your right hand, and don't look at it either. a. what is the probability the ball in your left hand is white? b. Next, you look at the ball in your right han...
Math
I figured it out never mind. a. is 1/3 because 4 of 12 balls are white, you pick with your left hand first, so all balls are still there. b. 1 ball is gone, so there are 4 white 7 black, therefore 11 balls left. 4/11 is the probability that the ball in your left is white.
Math
Box contains 4 white balls and 8 black balls. Pick a ball with your left hand, and don't look, pick a ball with your right hand, and don't look at it either. a. what is the probability the ball in your left hand is white? b. Next, you look at the ball in your right han...
Math
You come home after dark, and porch light is out. You cannot tell which key opens the door.. you randomly try the 5 keys on your ring, 2 keys open your door. Draw a tree diagram for the experiment & Find the probability of opening the door on the first or second try.
Can someone help with this?
Guess you don't know then why comment
Can someone help with this?
Sorry, yes
Can someone help with this?
A psychologist is performing an experiment involving a controlled group and an experimental group. With the experimental group, the psychologist is giving a placebo and labeling it as caffeine pill. The control group receives a caffeine pill, which is noted as such. Which of t...
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