Tips for Washing Produce. Keep in mind that produce is a raw product, grown in dirt, which is handled by lots of people before it ever gets into your kitchen. Bacteria can be transferred from dirt residue, or from any of the people handling the produce before and after it arrives in the supermarket. To ensure the safety of your produce, including organic produce, it's important to wash it well, using proper technique, experts say.
Devlin explains: The birthday problem asks how many people you need to have at a party so that there is a better-than-even chance that two of them will share the same birthday. Most people think the answer is 183, the smallest whole number larger than 365/2. In fact, you need just 23.
However, 99% probability is reached with just 57 people, and 50% probability with 23 people. In other words, in a room full of 23 people, there is a greater than 50/50 chance that two people will share a birthday.Let us consider the probabilities of the problem.If P(B) is the probability of at least two people sharing a birthday, then it is simpler to calculate the probability of no-one in the room sharing a birthday, P(Bâ); this way, we have two possibilities as these two events are mutually exclusive.owever, 99% probability is reached with just 57 people, and 50% probability with 23 people. In other words, in a room full of 23 people, there is a greater than 50/50 chance that two people will share a birthday.