Fix the wrong word in each rule

Exercise and reference answers

Questions

1. Statement parts

   1. A discrete PDF
   2. has probabilities
   3. that sum
   4. to zero

   Correction

   to one

   Incorrect part

   to zero

2. Statement parts

   1. The expected value
   2. describes
   3. the short term
   4. of an experiment

   Correction

   the long term

   Incorrect part

   the short term

3. Statement parts

   1. Degrees of freedom
   2. for a t interval
   3. equal
   4. n plus one

   Correction

   n minus one

   Incorrect part

   n plus one

4. Statement parts

   1. A t distribution
   2. has thinner tails
   3. than the
   4. standard normal

   Correction

   has thicker tails

   Incorrect part

   has thinner tails

5. Statement parts

   1. Alpha is the chance
   2. the interval
   3. does contain
   4. the parameter

   Correction

   does not contain

   Incorrect part

   does contain

Instructions

Tap the one part of each statistics line that makes it wrong.

Explanation