What is the area under the normal curve between Z = 1.0 and Z = 2.0?

What is the area under the normal curve between Z = 1.0 and Z = 2.0?
 
  A) 0.0228
  B) 0.1359
  C) 0.3413
  D) 0.4772

Q. 2

What is P(A1B1 ), rounded to two decimals?
 
  A) 0.33
  B) 0.35
  C) 0.65
  D) 0.67

Q. 3

Suppose that the average score on an exam is 73 with a standard deviation of 2. According to Chebyshev's theorem, at least 60 of the scores are in the interval between 70 and 76.
 
  Indicate whether the statement is true or false

Q. 4

Calculate the standard error of the 95 confidence interval.
 
  A) 0.40
  B) 3.46
  C) 13.69
  D) 2.50

Q. 5

Descriptive statistics are used to transform information into data.
 
  Indicate whether the statement is true or false

Q. 6

The probability is 0.3 that the sales office receives less than how many orders?
 
  A) 310.9
  B) 285.1
  C) 290.0
  D) 306.0