Martha drives to work every day and passes two independently operated traffic lights. the probability that both lights are green is 0.31. the probability that the first light is green is 0.51. what is the probability that the second light is green, given that the first light is green?

A. 0.61

Step-by-step explanation:

P(A)•P(B)=0.31

0.51•P(B)=0.31

P(B)=0.31/0.51=0.608

Rounded: 0.61

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation:

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation: