Answer: the experimental probability that a plant had white flowers is approximately 0.68, and the probability that a plant had purple flowers is approximately 0.32.
Step-by-step explanation: Total number of plants = Number of white flower plants + Number of purple flower plants
Total number of plants = 586 + 281
Total number of plants = 867
Probability of white flowers:
$P(\text{white}) = \frac{586}{867}$
$P(\text{white}) \approx 0.68$ (rounded to two decimal places)
Probability of purple flowers:
$P(\text{purple}) = \frac{281}{867}$
$P(\text{purple}) \approx 0.32$ (rounded to two decimal places)