test prep a random sample of laptop computers at an electronics store shows that 1 of the 25 sampled laptop…
test prep a random sample of laptop computers at an electronics store shows that 1 of the 25 sampled laptop computers has a malfunction. there are 300 laptop computers at the electronics store. estimate the number of laptop computers at the electronics store that have malfunctions. enter the correct answer in the box. show hints laptop computers
Answer
Explanation:
Step1: Calculate the proportion in the sample
The proportion of malfunction - ing laptops in the sample is $\frac{1}{25}$.
Step2: Estimate the number in the population
Multiply the proportion by the total number of laptops in the store. Let $x$ be the estimated number of malfunction - ing laptops. Then $x=\frac{1}{25}\times300$. $x = 12$
Answer:
12