The answer has to be 144 since it is the only one smaller than 180
Answer:
No
Step-by-step explanation:
Because 39 is prime and is not divisible by any numbers
Answer:
The probability that at most 38 of the 60 relays are from supplier A is P(X≤38)=0.3409.
Step-by-step explanation:
We can model this question with a binomial distribution random variable.
The sample size is n=60.
The probability that the relay come from supplier A is p=2/3 for any relay.
If we use a normal aproximation, we have the mean and standard deviation:

The probability that at most 38 of the 60 relays are from supplier A is P(X≤38)=0.3409:

<span>Here's one --> 1000÷100=10</span>