I have 2 statistic homework questions that require the use of Excel. Please look at the document

I have 2 statistic homework questions that require the use of Excel. Please look at the document

4. A new drug for treating insomnia has resulted in a 50% success rate nationwide. From a random sample of 100 patients using the new drug, what is the probability that:

a. At least 25 will be cured?

b. Between 50 and 75 (inclusive) will be cured?

6. A store typically has 5 customers arrive per hour, and arrivals follow a Poisson distribution. What is the likelihood that

a. no customers will arrive in an hour?

b. less than three customers arrive in an hour?

c. five or more customers arrive in an hour?