Acoin is flipped and a random marble is picked from a bag of 10 marbles. two of the marbles in the bag are red. what is the probability of the coin landing on tail and a red marble being drawn? enter your answer as a fraction in simplest form in the box.

A coin flip has a 1/2 probability of landing on tails.

There are 2 red marbles and 10 total marbles.

The probability of picking a red marble would be 2/10, which reduces to 1/5.

The probability of both tails and a red marble would be 1/2 x 1/5 = 1/10

step-by-step explanation:

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify