Assume that 30% of students at NIU wear contacts. We randomly pick 100 students to find out if they wear contacts and compute the sample proportion. Find the mean and the standard deviation (SD) of the sampling model of the proportion.

0.32

step-by-step explanation:

2.24/7

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.

answer: i think one of the answer is $150 and $300?

step-by-step explanation: