Question

Of the customers who enter a store for stereo speakers, only 24% make purchases. if 38 customers enter the showroom tomorrow, find the approximate probability that at least 10 will make purchases.

Answer 1

24% of 38 = (1 - 24/100) × 38 = 28,88 = 29

24 % ←→ 29
x% ←→ 10

x = 10 × 24 ÷ 29
x = 8,27586
x = 8 %

ANSWER 8%