Each time its rolled it has a 1/6 chance of rolling a two. Out of 50, it should come up as 2 about 8.33 percent of the time. That is the theoretical probability. However, it came up as two 10 of the 50 times, or 20 percent. The difference is about 11.67
Answer:
40 photos
Step-by-step explanation:
3 × y = 12 × 10
3y = 120
y = 40
Karissa ->. Distance = speed x time
Take the distance she travels to be x
X = 17t
Alexandra -> she would meet karissa at 261 - the x miles karissa travelled hence we get the equation
(261 - x ) = 12t
Rearrange so x is the subject
X = 261 - 12t
Next set the two equations equal to each other so you get
17t = 261 - 12t
Now solve for t
29t = 261
Divide each side by 29 To get the Value of t
t = 9 hours ( remember to take the units into account)
For question 7, if we add all votes for tiger and eagle, we get
tiger = 14 + 13 + 8 + 5 = 40
eagle = 6 + 7 + 12 + 15 = 40
so choices A and B are wrong.
C is also wrong because fifth and sixth grade votes for eagle are 6 + 7 = 13 and the 5th and 6th grade votes for tiger are 14 + 13 = 27. clearly 5th + 6th like tiger more.
D is the answer for question 7
question 8
rolling a cube does not affect the other cube so it is all independent probability.
cube: 1 2 3 4 5 6
3 even numbers and 3 odd numbers
so probability of rolling an even number is
1/6 + 1/6 + 1/6 = 3/6 = 1/2
multiplying by total number of rolls, she will get even numberss
300 * 1/2 = 150
about 150 time.
so half of the time, Cassie will roll and even number about half the number of rolls. never exactly since this is all probability. more likely for it to be around 150 times than exactly 150 time.
choice C is answer for question 8