42 and 63 both are at the rate of 2 to 3 and they add up to 105
First you find out what 20% of 30 is (30 * 0.20 = 6)
Then you take 30/6 to get your answer (30/6 = 5)
There will be 5 students in each group.
The answers 4, hope it helps
Answer:

Step-by-step explanation:
Given
Poisson Distribution;
Average rent in a week = 2.3
Required
Determine the probability of renting no more than 1 apartment
A Poisson distribution is given as;

Where y represents λ (average)
y = 2.3
<em>Probability of renting no more than 1 apartment = Probability of renting no apartment + Probability of renting 1 apartment</em>
<em />
Using probability notations;

Solving for P(X = 0) [substitute 0 for x and 2.3 for y]




Solving for P(X = 1) [substitute 1 for x and 2.3 for y]









Hence, the required probability is 0.331
Answer:
C. -2/3 < -0.8
F. -3/5 < -0.35
Therefor, -2/3 is less than -0.8.
And, -3/5 is also less than -0.35.
Also, you could turn the fractions into decimals to make your life easier for example, -3/5 into decimal form is -0.6.
And -2/3 into decimal form is -0.6666
* Hopefully this helps:) Mark me the brainliest:)!!