Tuesday

February 21, 2017
Total # Posts: 14

**statistics**

what is a critical value

*May 22, 2012*

**Please can you help me (Statistic))**

If the confidence interval obtained is to wide. How can the width of this interval be reduce and which alternative is the best and why? Thank you for your help

*May 13, 2012*

**Please can you help me (Probability)**

Maria is playing a game of chance at the Hibiscus festival, costing $1 for each game. In the game two fair dice are rolled and the sum of the numbers that turn up is found. If the sum is seven, then Maria wins $5. Otherwise Maria loses her money. a) Please can you Construct ...

*April 19, 2012*

**Please can you help me (Probability)**

Whether multiplying the same number to each value in the data set will affect its variance, please can you gave me an example. Thank you for your help.

*April 18, 2012*

**Please can help me solving my problems(Probality)**

Probability that Jackson is in the office is 0.82 and probability that Alice is in the office is 0.5. The probability that Jackson is in the office given that Alice is in the office is 0.76.Find the probability that at any particular time during office hours. 1)Both Jackson ...

*April 12, 2012*

**Please can help me solving my problems(Probality)**

A manufacturer makes mobile phone. The manufacturer employs are inspector to check the quality of its product. The inspector tested a random sample of the phone being defective as 0.049. Ashmita buys three of the phones made by the manufacturer. Find the probability that. 1) ...

*April 12, 2012*

**Statistic**

Out of 150 ST130 students in 2010, 52% passed. A sample of 30 randomly selected ST130 students resulted in 65% passed. i. Describe the population and sample. ii. Identify the parameter and give its value.

*April 10, 2012*

**math**

Please can you Use an example to explain whether multiplying the same number to each value in the data set will affect its variance, give the relationship

*April 10, 2012*

**English**

What are some of disadvantage if we preseving our cultural resources?

*March 30, 2012*

**math**

What can you say about sets A and B if you know that. 1)A U B = A? 2)A ¿ B = A? 3)A - B = A?

*March 29, 2012*

**math**

(B-C)^2=(C-B)^2, Where B and C are (n x n) in matrices.Is it true or false.

*April 15, 2011*

**math**

In how many ways can a committee of five people be selected from seven women and nine men if at least one woman must be in the committee?

*April 15, 2011*

**math**

is this equation is a linear equation [x + 2y -3z / e^2 + In(2) =0.]true or false

*April 15, 2011*

**math**

A factory needs two raw materials, say, A and B. The probability of having an adequate supply of material A is 0.94, whereas the probability of having an adequate supply of material B is 0.96. A study shows that the probability of a shortage of both A and B is 0.02. What is ...

*April 15, 2011*

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