In a certain presidential election, Alaska's 40 election districts averaged 1,954.8 votes per district for a candidate. The standard deviation was 572.4. (There are only 40 election districts in Alaska.) The distribution of the votes per district for one candidate was bell-shaped. Let X = number of votes for this candidate for an election district. a.  Find the probability that a randomly selected district had fewer than 1,700 votes for this candidate. (Round your answer to four decimal places.)   b. Find the probability that a randomly selected district had between 1,800 and 2,000 votes for this candidate. (Round your answer to four decimal places.)   c. Find the third quartile for votes for this candidate. (Round your answer up to the next vote.)

The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 420 grams and a standard deviation of 24 grams. Find the weight that corresponds to each event. a. highest 20 percent b. middle 60 percent c. highest 80 percent d. lowest 15 percent

Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?

The histogram (click the attacthed photo to view) shows the distribution of hurricanes that have hit a country from 1851 through​ 2015, where 1 is the weakest level and 5 is the strongest level.   A) The mean is? B) The variance is? C)The standard deviation is?

About 2% of the population has a particular genetic mutation. 800 people are randomly selected.Find the standard deviation for the number of people with the genetic mutation in such groups of 800.

About 6% of the population has a particular genetic mutation. 700 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 700.

About 9% of the population has a particular genetic mutation. 600 people are randomly selected.Find the standard deviation for the number of people with the genetic mutation in such groups of 600.

Please answer A, B, & C.

In the 1992 presidential election, Alaska's 40 election districts averaged 2056 votes per district for President Clinton. The standard deviation was 581. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places.c. Find the probability that a randomly selected district had fewer than 2103 votes for President Clinton. d. Find the probability that a randomly selected district had between 2138 and 2245 votes for President Clinton. e. Find the first quartile for votes for President Clinton. Round your answer to the nearest whole number.