Answer:
Number of cats in the kennel = 8
Step-by-step explanation:
Let
c denote the number of cats and
d be the number of dogs
Given that the ratio of dogs to cats is 3 to 2
So,
d:c=3:2
Sum of ratio is 5.
And the total number of cats and dogs is 20.
So in order to find the number of cats, following formula will be used:
So, there are 8 cats in the kennel ..
Answer:
11.844
Step-by-step explanation:
9 is bigger than 5 so it makes the 3 a 4
Answer:
c. 0.088
Step-by-step explanation:
Let p(s) be the proportion of apples defected in the sample. The probability that p(s)<0.05 can be calculated by calculating z statistic of 0.05:
where
- p is the proportion of the apples in fact defected (0.08)
- N is the sample size (150) Then,
z(0.05)=
And P(z<-1.354)≈0.0879
Therefore the probability that a random sample of 150 among 8% defected apples can be accepted is 0.088.
Answer:
2187
Step-by-step explanation:
This is the same as 3^7, which is 2187
