Adding and Subtracting Whole Numbers Chapter 4 lesson 1

Frequency:The number of times an event occurs.

Easy:
1) Qi does the experiment again and got 444 'one head, one tail' in 1 000 tosses. Use mental math to find 3 possible frequencies for 'both head' and 'both tail'.Show your strategys.

2) Qi does another experiment and the frequency that he got 274 'one head, one tail' in 1000 tosses. Find 3 possible frequencies for 'both head' and 'both tail'.

Medium:
3) Andy flips a coin 2000 times and got heads 1512 times. How many times did he flip tails? Show your work.

4) Raymond tosses a coin 5000 times and he flipped 660 heads. How many times did he flip tails? Show your work.

Hard:
5) Choose a number of tosses than 10000. What might be the frequency of each outcome be? Show your strategy.