The Birthday Problem This classic problem wonders how many people need to be in a group in order to have a greater
than 50% chance that at least two of them share a birthday. Answer each of the following
questions below to explore this problem.
4. Consider a group of three people instead. What is the probability that none of these
three people share a birthday?
5. Given your answer to #4, what is the probability that at least two of those people DO
share a birthday?
6. Continue calculating the probabilities of no shared birthdays and shared birthdays for
larger and larger groups until you find a size at which the probability of at least two of
them sharing a birthday is at least 50%. How many people are in that group?

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)

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734