The length of a particular species of fish can be assumed to be normally distributed with mean 25cm and standard deviation 3cm. An angler catches one of these fish from a river. What is the chance that the fish is between 19cm and 31cm in length? 95 100 68 50

There are three financial aid counselors. If a student’s last initial is from A – H, let them know that their counselor is Jon Stewart. If a student’s last initial is from I – Q, let them know that their counselor is Chelsea Handler. If a student’s last initial is from R – Z, let them know that their counselor is Brian Williams.Ask student for the FICO score, if it’s less than 660 tell that this student cannot have a loan.

X is a discrete random variable with the following PMF: P(X = 1.4) = 0.25 P(X = -9.7) = 0.25 P(X = 10) = 0.5 Find the standard deviation of X.

If 25% of all U.S. drivers are observed traveling at 50 mph or less, what is the mean µ?

Explain how we perform maximum likelihood

Suppose that the minimum and the maximum values of the attribute cholesterol level are 104 and 253, respectively. Use min-max normalization to transform the value 148 for cholesterol level onto the range [0.0, 1.0). Round your result to one decimal place.

Given that the mean for a data set is 24.8 and the standard deviation is 2.3, find the z-score of the number 27 in this set. Group of answer choices -0.96 0.96 0.83 1.00

What is the standard score of a normal distribution? Z Score X Score degrees of freedom t score