From experience, the manager of Kramer's Book Mart knows that 30% of the people who are browsing in the store will make a purchase. What is the probability that among ten people who are browsing in the store, at least seven will make a purchase?

Step-by-step explanation:

Given that:

prob of at least 7 from 10 will make purchase

= prob(7will buy) + prob(8 will buy) + ..+ prob(10 will buy)

= C(10,7) + C(10,8) + C(10,9) + C(10,10)

= 0.0105

So the probability that among ten people who are browsing in the store, at least seven will make a purchase is: 0.0105

it's both, now can you answer my most recent question?

this shows a reflection over the x-axis and is translated one unit down and 6 units to the right (x + 6, y - 1)

hope this !

~just a girl in love with shawn mendes