Question

Suppose you did a random sample of 25 mountain bikes out of 500 bikes made by a company .If you found 1 of the bikes broken in your sample,how many of the 500 would you expect tobe broken

Answer 1

Answer:

20 bikes

Step-by-step explanation:

Set up a proportion: $\frac{1}{25}=\frac{x}{500}$

Cross-multiply: $500=25x$

Isolate the variable: $\frac{500}{25} =x$

$20=x$