Precalculus – Day 01 – Statistics
5. Write out the first 8 rows of Pascal’s Triangle. Count
your rows so that the third row is 1 3 3 1.
6. Determine the probability that if you flip a coin eight
times, you will flip exactly 4 heads and 4 tails. Explain in
detail how you arrived at your answer.
7. a. Picture two spinners that are equally likely to land
on any integer between 1 and 5, inclusive. List all 25
ways the spinners could land if you spin them both.
b. Find the probability that the two numbers spun do
not share a common factor greater than 1.
d. Repeat parts (a) and (b) for two spinners that are
equally likely to land on any integer between 1 and 6,
inclusive. For this, there are 36 outcomes.
e. Repeat parts (a) and (b) for two spinners that are
equally likely to land on any integer between 1 and 7,
inclusive.
8. a. If you flip a fair coin 240 times, how many heads
would you expect?
b. Guess the probability of getting exactly this many
heads.