The bookstore has 15 new copies and 15 used copies in stock. If 25 people come in one by one to purchase this text, what is the probability that all 25 will get the type of book they want from current stock

The probability that all 25 will get the type of book they want from current stock is 0.024

Step-by-step explanation:

21% of all students who have to buy a text for a particular course want a new copy (the successes!), whereas the other 79% want a used copy.

p= 0.21

q=0.79

Let x be the no. of students who want a new copy

x can take values 15,14,13,12,11,10

We are supposed to find probability that all 25 will get the type of book they want from current stock

Hence the probability that all 25 will get the type of book they want from current stock is 0.024

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

answer: i'm not sure

step-by-step explanation: