Answer: 75 students.
Step-by-step explanation:
In the data set we have a total of 10 + 8 + 7 + 5 = 30 students.
of those, 10 want to go to the park, the percentage is:
(10/30)*100% = 33.3%
Then, out of the 225, we can expect that a 33.3% (or 0.333 in decimal form) want to go to the park, this is:
N = 225*0.333% = 74.925
We can roud it up, and get N = 75
So Sally can expect that 75 students want to go to the park
The last number would be 86 , TRUST ME I know these stuff!!
Answer:
1,2,3
Step-by-step explanation:
Answer:
probability that Marnie and Noomi are both selected=0.1
Step-by-step explanation:
A group of 5 managers (Joon, Kendra, Lee, Marnie and Noomi), 2 people are randomly selected to attend a conference in Las Vegas.
the possibility of selecting 2 from 5 manages is 5C2 ways
There is only one choice of selecting Marine and Noomi from 5 managers
So probability of selecting Marine and Noomi is
Step-by-step explanation:
f(x) = x² - x³
f(-2) = (-2)² - (-2)³
= 4 - (-8)
= 4 + 8 = 12
