60% because I took it too
Answer:
Squirrel will take 0.25 hours or 15 minutes
Step-by-step explanation:
Given:
Maximum speed of squirrel = 12 miles/hour
Distance to be covered = 3 miles
To Find:
Time taken to cover the distance = ?
Solution:
We are given the distance and speed of the squirrel and we have to find the time taken by the squirrel
We are given the formula for distance
Distance = speed * time
Now to we have the values
putting in the values
3 = 12 * time
dividing both sides by 12

0.25 hours = time
as one hour = 60 minutes
so
time = 0.25 * 60 minutes
time = 15 minutes
Squirrel will take 0.25 hours or 15 minutes
Answer:
0.7633
Step-by-step explanation:
Proportion of the population that is contaminated = P = (4/17) = 0.235
We now need to find the probability that not more than 1 of the 4 bottles tested is contaminated. This is a binomial distribution problem.
Binomial distribution function is represented by
P(X = x) = ⁿCₓ pˣ qⁿ⁻ˣ
n = total number of sample spaces = number of bottles to be tested = 4
x = Number of successes required = 0, 1
p = probability of success = probability that a bottle is contaminated = 0.235
q = probability of failure = probability that a bottle is NOT contaminated = 1 - 0.235 = 0.765
P(X ≤ 1) = P(X=0) + P(X=1) = 0.34248830063 + 0.4208352975 = 0.7633235981 = 0.7633 to 4 d.p
Hope this helps!!!