Math Answers

Relate Type l and Type ll errors to your life in terms of making decisions.What were the consequences of your errors?

Why should we minimize Type l errors in our decision making?

State one major difficulties students are likely to encounter in understanding inverse mapping

Write one application and Reasoning test item based on topic 'Inverse mapping'.

Create a set that is presented in a set builder notation form.

Let the function , defined by

f(x)= 1/x+3 ; x∈ [3,∞[

Check whether f is uniformly continuous or not on the interval of definition

On the day before an exam in an online class, students e-mailed questions to the professor at a rate of 1 every 20 minutes, exponentially distributed. Determine the probability that the interval between succeeding messages is more than an hour.

QUESTION 22

Consider the bivariate distribution of X and Y as given in the following table.

X

Y 0 1 2

0 0:04 0:05 0:18

1 0:12 0:08 0:14

2 0:13 0:09 0:17

(a) Calculate the marginal probability of X. (3)

(b) Calculate the marginal probability of Y . (3)

(c) Calculate the mean and the variance of X. (7)

(d) Calculate the mean and the variance of Y .