Question

with the sudden switch to online instruction during the covid - 19 crisis, there is much concern about students having access to devices that can zoom into online classes. a random survey of 56 freshman students surveyed indicated the following breakdown of devices that these students had.

laptops & smart phones	laptops only	smart phones only	total

what is the probability that a random freshman student has a smart phone only?
in other words, p(smart phone only) = ____________
enter your answer as a decimal rounded to 3 decimal places.

Explanation:

Step1: Recall probability formula

The probability formula is $P(A)=\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$.

Step2: Identify values

The number of students with smart - phones only is 6 (favorable outcomes), and the total number of students surveyed is 56 (total number of outcomes).

Step3: Calculate probability

$P(\text{smart phone only})=\frac{6}{56}=\frac{3}{28}\approx0.107$

Answer:

$0.107$