Questions asked
The lifespan of a specific species of turtle is normally distributed with a mean of 180 years and a standard deviation of 40 years. What is the probability that one of these turtles will live more than 100 years? (4 marks)
I have 3 math books and 4 science books. I want to arrange them so that all the math books are together and all the science books are together. In how many ways can I do this? Question 9 options: a) 30 b) 288 c) 144 d) 60
In a game of Go-Fish I am dealt a hand of 4 cards from a deck of 52. How many different hands are possible? Question 8 options: a) 270 725 b) 6 497 400 c) 19 600 d) 117 600
I have 4 pairs of boots, 8 pairs of shoes and 3 pairs of sandals. How many choices do I have for my footwear? Question 6 options: a) 96 b) 28 c) 36 d) 15
In how many different orders can 8 books be arranged on a shelf? Question 5 options: a) 5040 b) 20 160 c) 362 880 d) 40 320
I have 8 books and need to choose 3 to take on holiday. How many different groups of three could I take? Question 4 options: a) 6720 b) 336 c) 56 d) 70
In a lottery, you must pick five numbers from 30. How many different ways of doing this are there? Question 3 options: a) 243 000 000 b) 142 506 c) 17 100 720 d) 810 000
9! ÷ 4! gives what product? Question 2 options: a) 9 x 8 x 7 x 6 b) 9 x 8 x 7 x 6 x 5 c) 9 x 8 x 7 x 6 x 5 x 4 x 3 d) 9 x 8 x 7 x 6 x 5 x 4
The product 6 x 5 x 4 x 3 can be expressed in factorial notation by Question 1 options: a) 6! ÷ 2! b) 2! ÷ 6! c) 4! ÷ 6! d) 6! ÷ 4!
What type of relationship exists between the following variables: The number of cars sold shows a strong positive correlation to the number of running shoes sold.