Suppose that the annual rate of return for a common biotechnology stock is normally distributed with a mean of 4% and a standard deviation of 4%. Find the probability that the one-year return of this stock will be positive. Round your answer to at least four decimal places. 0 X

Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard deviation for x is 1.46, and the standard deviation for y is 5.54. The regression equation is reported as  y=5.7 +1.74xy=5.7 +1.74x  What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer as a decimal between 0 and 1.)

Answer a & b.

Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard deviation for x is 1.32, and the standard deviation for y is 4.28. The regression equation is reported as  y=−3.1 +1.97xy=-3.1 +1.97x  What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer as a decimal between 0 and 1.)

Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard deviation for x is 0.84, and the standard deviation for y is 3.14. The regression equation is reported as y=-3.3 +1.96x What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer as a decimal between 0 and 1.)

Using your favorite statistics software package, you generate a scatter plot which displays a linear form. You find a regression equation and the standard deviation for both variables. The standard deviation for x is 1.37, and the standard deviation for y is 4.2. The regression equation is reported as y = 3.2 + 1.29x What fraction of the variation in y can be explained by the variation in the values of x? (Enter your answer as a decimal between 0 and 1.) Submit Question

Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard deviation o = 15. Find the probability that a randomly selected adult has an IQ less than 118. Click to view page 1 of the table Click to view page 2 of the table The probability that a randomly selected adult has an IQ less than 118 is (Type an integer or decimal rounded to four decimal places as needed.)

The average number of miles driven on a full tank of gas in a certain model car before its​ low-fuel light comes on is 399. Assume this mileage follows the normal distribution with a standard deviation of What is the probability​ that, before the​ low-fuel light comes​ on, the car will travel between 328 and 348 miles on the next tank of​ gas? 36 miles. Complete parts a through d below. (Round to four decimal places as​ needed.

A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.7 years, and standard deviation of 0.9 years. The 3% of items with the shortest lifespan will last less than how many years? Give your answer to one decimal place. years

Solve for the mean and standard deviation of the following Binomial distributions. a. n = 20 and p = 0.70 b. n = 70 and p = 0.35 c. n = 100 and p = 0.50