What is the z value of question 3?

A Reuters poll of 1007 randomly selected adults show that 93% of them know twitter. Find the margin of Error, E, with 90%  CL                 E = ( Z alpha/2)  (Sqrt ( pq/n))

When estimating population mean with σ (sigma) not known. You follow two requirements

You roll a die. Find the probability of rolling a number less than 3 or rolling an odd number.

What are the requirement checks for question #3? (Normal Distribution as approximate to the Binomial Distribution)

The basic multiplication rule is used for finding P(A and B), the probability that event A occurs in a first trial and event B occurs in a second trial. If the outcome of the first event A somehow affects the probability of the second event B, it is important to ___________the probability of B to reflect the ____________ of event A.

Pew Research revealed 92% of adults know twitter. 5 adults were randomly chosen. What is the probability Exactly 3 adults know twitter. Note: 5C3 means 5 combination 3 where order is not important

The probability that events A or B will occur, P(A or B), is given by P(A or B) = P(A) + P(B) P(A and B). If events A and B are mutually exclusive, then the rule can be simplified to ___________. It is because __________

The frequency distribution shows volumes of sales and the number of months in which a sales representative reached each sales level during the past three years. Using this sales pattern, find the probability that the sales representative will sell between 25,000 and 74,999 next month  

We found for families with two children, the mean number of girls is 1.0 and the standard deviation is 0.7 girls. Use those values to find the maximum and minimum usual values for the number of girls. Will 2.5 be unusual?