Question

question 3 - 1 point
the probability that josslyn is on time for a given class is 47 percent. if there are 38 classes during the semester, what is the best estimate of the number of times out of 38 that josslyn is on time to class? round your answer to the nearest integer.
provide your answer below:

Explanation:

Step1: Convert percentage to decimal

The probability of being on time is 47%, which as a decimal is $0.47$.

Step2: Multiply by number of classes

To find the expected number of on - time classes, we multiply the probability of being on time by the total number of classes. So we calculate $0.47\times38$.
$0.47\times38=(0.4 + 0.07)\times38=0.4\times38+0.07\times38 = 15.2+2.66 = 17.86$.

Step3: Round to nearest integer

Rounding $17.86$ to the nearest integer gives us 18.

Answer:

18