you want to buy headphones, and for each headphone the store...

1. you want to buy headphones, and for each headphone the store offers  5 brands,  4 colors,  2 wireless types and  3 cord lengths. How many options are available ?

2.In how many ways can  10 different books be arranged in a shelf ?

3.In how many ways can you select a group of  3 students from a class of  20 students ?

Group of answer choices

4.Evaluate 10P3.

5.The probability of an event is never a ____________ number.

13.A fair coin is flipped twice. What is the probability of obtaining double TAIL ?

14.The probability of the conjunction of two events  A and  B is given by the formula :

16.A fair coin is tossed four times. What is the probability of getting at least one TAIL ?

17.If the probability of rain is  85 % , then the probability of no rain is :

19.A coin is flipped 60 times, and the results are: 24 heads and 36 tails.

Based on these results, calculate the empirical probability of HEAD.

20.A bag contains equal (except for color) marbles, with the following colors: 16 red, 31 blue, 9 white, and 14 black.

One marble is randomly selected from this bag. What is the probability that it will be black ?