There were 31 students who completed a survey. There were 13 boys and 18 girls. One survey was picked at random. To the nearest hundredth, what is the probability it was completed by a girl?
18/31 = 0.58
To find the probability of picking a survey completed by a girl, we need to divide the number of surveys completed by girls by the total number of surveys.
In this case, there were 18 girls out of 31 students who completed the survey. Therefore, the probability of picking a survey completed by a girl is given by:
Number of surveys completed by girls / Total number of surveys = 18 / 31
To evaluate this, we can divide 18 by 31 to get the decimal form of the probability. Rounding to the nearest hundredth, we have:
18 ÷ 31 ≈ 0.58
So, the probability of picking a survey completed by a girl is approximately 0.58 or 58%.