URGENT!!! A recent survey found out that 52% of girls 14-17 years old wear contacts. We take a random sample of 20 girls 14-17 years old. a) Is this a binomial distribution? why or why not?
b) Find the probability that exactly 15 girls in our sample of 20 are wearing contacts.
c) Find the probability that at least 10 girls are wearing contacts

On a piece of paper graph f(x)=5•(0.4)^x

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?