Answer:
Find the relative frequency for the event "heads" for each friend:
Friend 1: 0.59 (41/70)
Friend 2: 0.7 (49/70)
Friend 3: 0.37 (26/70)
If the friends combine their results to get 116 heads and 94 tails, what is the relative frequency for the event "heads"?
0.55 (116/210)
Suppose each friend flips a coin 700 times. Is there a value you would expect the relative frequency for the event "heads" to be close to?
For Friend 1, basing it off the 0.59 frequency from earlier, I would expect the heads to be around 413.
Friend 2, 490
Friend 3, 259
Answer:
8
Step-by-step explanation:
Add all the numbers and then divide them by how many numbers there are.
(14 + 2 + 12 + 11 + 2 + 14 + 3 + 2 + 12) = 72
72/9 = 8
1/20 is equal to 5/100, meaning 5% have a bird
Given:
The two statements.
To find:
The probability of an impossible event.
The probability of a certain event.
Solution:
Formula for probability is:
For an impossible event, the possible favorable outcomes is 0. So,
For a certain event (sure event), the possible favorable outcomes is equal to total number of outcomes. So,
Therefore, an event that is impossible has probability 0 and an event that is certain has probability 1.
We can find the cost of ONE pizza, by dividing the price (60) by the amount (5):
60 / 5 = 12.
So each pizza costs 12 dollars, now to multiply that by 9:
12 * 9 = 108.
9 Pizzas cost 108 dollars.
