1. What is the probability of randomly sampling and getting a value of 1.23 or more for the standard normal distribution?

2. What is the probability of randomly sampling and getting a value of -1.23 or more for the standard normal distribution?

3. A normally distributed distribution has a mean of 100 and a standard deviation of 10. What's the chance of getting a number between 91and 94?

4. A normally distributed distribution has a mean of 100 and a standard deviation of 10. What's the chance of getting a number between 91 and 104?

5. The weights of orangeshave a normal distribution with a mean of 150 grams. If 15% of orangesweigh more than 160 grams, what is the population standard deviation?

6. In FairfaxCounty, the chance of being bitten by a mosquito is 0.2. What is the probability that 18 or more people out of 100 are bitten by a mosquito?