Answer:
85 students
Step-by-step explanation:
Given
Required
Find the total number of students
We have:
Substitute:
Express as fraction
Multiply both sides by 51
So, the total is:
Answer:
Option C: 0.28
Step-by-step explanation:
This is a binomial probability distribution problem.
Now, we want to find the probability that at least 2 thumbtacks land pointing up when 5 thumbtacks are tossed. This is written as;
P(X ≥ 2) = P(2) + P(3) + P(4) + P(5)
From the histogram;
P(5) = 0.02
P(4) = 0.02
P(3) = 0.05
P(2) = 0.19
Thus;
P(X ≥ 2) = 0.19 + 0.05 + 0.02 + 0.02
P(X ≥ 2) = 0.28
Answer:
A) 15
Step-by-step explanation:
20 x 0.75= 15
Answer:
= 14n-1
Step-by-step explanation:
Answer:
4 kg
Step-by-step explanation:
