Here are two methods to make a 4-digit code. Codes can have repeated digits.
Method A
For the first two digits use an even number between 29 and 100
For the last two digits use a multiple of 11
Method B
Use 4 digits in the order odd even odd even
Do not use the digit zero
How many more codes can be made with method B than with method A?
In your working you must say how many codes can be made with each method.

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain