Math mix

"In the production of Grease, eight actors considered for the male roles of Danny, Kenickie, and Marty. How many ways can the director cast the male roles? "  
Which is the best way to solve this equation?

• 3P8
• 8C3
• 8P3
• 3C8

A spinner has an equal chance of landing on each of its eight numbered regions. After spinning , it lands in region three or six.
 This is Not a mutually exclusive event.

• True 
• False

9 dogs and 6 cats are available to photograph. A photographer chooses 3 animals at random. What is the probability that 2 dogs and 1 cat will be chosen? 

• 72/455
• 48/325
• 81/455
• 1/2

What is the middle term for the expansion of (a+b)6 ?

• 15a4b2
• 20a3b3
• 6a3b3
• 20ab3

What is the shape of this chart?

• Left skewed
• Uniform 
• About bell shaped 
• Right skewed 

Is there any outliers in the following data set ?
99, 85, 81, 90, 24, 79, 82

• Yes there is a upper outlier 99
• No there are no outliers 
• Yes there is a lower and upper outlier 99 & 24
• Yes there is a lower outlier 24  

Find the missing angle x

• 5.36
• 28.11
• 29.17
• .487

The mean weight of a group of american men is 190 pounds with a standard deviation of 20 pounds.  What standard deviation weight on the normal curve separates approximately the lowest 16% of all american men's weights?

• 130 pounds 
• 210 pounds 
• 150 pounds 
• 170 pounds 

Determine the probability of flipping a heads then a tails and then a heads ?

• 1/8
• 1/2
• 1.5
• 3/2

What is the IQR of this data set? 

• 22
• 18
• 8
• 26