Consider a 7 digit number in the form ABC- where A is 2-9 and X, B, and C can be any digit 0-9. Additionally B and C cannot both equal 1 since
these values are designated for other purposes such as services like 911.
Lastly 555-0100 through 555-0199 are reserved for fictional uses such as in
television shows or movies.
According to these conditions, how many 7-digit numbers are possible in a
single area code?

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

What can you determine about the solutions of this system

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