Standard and Non Standard Probability

If the mean number of words typed is 40 with a standard deviation of 7, between what number of words type do 95% of all people type

• 19 - 61 words

• 26 - 54 words

• 33 - 47 words

• 47 - 61 words

• 19 - 54 words

What is the n value for choosing 5 cards from a standard deck of cards? 

• 2

• 5

• 13

• 52

How many ways can 8 cheerleaders be chosen for 3 positions on the cheer team?

• 24

• 56

• 128

• 336

You flip a coin three times. What is the probability of three consecutive heads?

• ½

• ⅓

• ⅙

• ⅛

You have 15 milk chocolate Valentines and 10 dark chocolate Valentines.  What is the probability that the first Valentine handed out is milk chocolate and the second is dark chocolate.

• ¼

• ½

• ⅖

• ⅜

Which answer describes conditional probability  

• A conclusion drawn  based on what one 
  already knows and 
  on that alone

• The probability of 
  some event A,
   assuming event B

• The number of 
  favorable outcomes 
  divided by 
  the total number of 
  possible outcomes.

• The occurrence of some 
  event A automatically
  implies the non–occurrence of a 
  second event B.

Jim draws 4 cards from a deck of cards.  What is the probability of all 4 cards being clubs?

• 13C4
  52P4

• 13C4
  52C4

• 1
  52C4

• 1
  52P4

Eight racers are running and Tom wants to know his probability to earn a medal (Gold, Silver or Bronze).

• ⅓

• ⅗

• ⅜

• ⅝

Which of the following is incorrect?

• P (A) > 1

• 0 ≤ P (A) ≤ 1

• P(ɸ) = 0

• P (A) + P (A^-) = 1

The probability a red marble selected at random from a jar containing p red, q blue and r green marbles is

• 
• 
• 
•