The probability of winning a game is 25%. How many times should you expect to win if you play 40 times.
You should expect to win approximately 10 times.
To find out why, you can use the formula:
Expected number of wins = probability of winning x number of times played
Expected number of wins = 0.25 x 40
Expected number of wins = 10
A survey showed that 56% of car owners prefer four door cars. 31% prefer two door cars, and 13% have no preference. you ask 300 people. How many do you think will prefer four door cars?
0.56 * 300 = ?
To find the expected number of times you should win if the probability of winning a game is 25% and you play 40 times, you can use the formula:
Expected number of wins = Probability of winning * Number of trials
Now, let's break down the calculation step-by-step:
1. Probability of winning = 25% = 0.25 (in decimal form)
Convert the percentage into decimal form by dividing it by 100.
2. Number of trials = 40
This is given in the problem.
3. Expected number of wins = Probability of winning * Number of trials
Plug in the values:
Expected number of wins = 0.25 * 40
= 10
Therefore, you should expect to win 10 times if you play the game 40 times.