The probability of correctly predicting the outcome of a coin ...

[j.rubin]

The probability of correctly predicting the outcome of a coin toss is p = 1/2. What is the standard deviation of the normal approximation to the binomial distribution for the number of correct predictions in a series of 100 tosses?
 
  A) 50
  B) 25
  C) 10
  D) 5

Question 2

For the repeated-measures t statistic, where n1 and n2 are the number of scores before and after treatment, and n = n1= n2, df = ____.
 
  A) n1 + n2 - 2
  B) n - 2
  C) n - 1
  D) n1 + n2 - 1

[Zack0mack0101@yahoo.com]

Answer to Question 1

D

Answer to Question 2

C

[j.rubin]

Thanks for the timely response, appreciate it

[ecabral0]

TYSM